Thermahood chooses Lati flame retardant compound

Thermahood chooses Lati flame retardant compound

UK company Thermahood, based in Co. Down, Northern Ireland, has chosen LATENE 7H2W-V0 flame retardant polypropylene as the ideal material from which to manufacture its innovative plastic Downlight Attic Seals.

Downlight covers already exist in other materials and allow loft insulation to be continued over downlights thereby reducing heat loss and draughts.
The Thermahood Downlight Attic Seal, made from flame retardant polypropylene, uses a combination of unique design and material selection to provide an airtight seal.
This overcomes any risk of condensation as a result of water vapour transmission into cold attic voids, as well as optimizing the sealing properties.
A strong consideration in the choice of material was the UL 94 certification available for the chosen grade of LATENE 7H2W-V0.

The yellow card certification provided by UL shows the excellent self-extinguishing properties of the polymer which has a flame rating of V0 down to a thickness of 0.75 mm.
Also certified by UL is the Relative Thermal Index which shows that the physical properties of the compound are not unacceptably compromised at a continuous use temperature of 115°C.

LATENE 7H2W-V0 is also free from halogenated flame retardant additives, RoHS compliant, and manufactured by Lati Industria Termoplastici S.p.A. whose environmental management system is certified to ISO 14001.

Self-extinguishing compounds and rail industry: a growing dual concept

Self-extinguishing compounds and rail industry: a growing dual concept

Recent innovations in LATI S.p.A. self-extinguishing thermoplastic compounds have caught the interest of designers operating in the world of rail transport.
In this regard, a factor of primary interest is the absence of halogenated flame retardants and red phosphorus that characterizes the new HF1 formulations.

This is an essential first step towards the reduction of danger of fumes produced by the materials in case of fire.

Equally important are the certifications of conformity to the requirements of the European industry standard EN45545, which states for each tested compound the suitability for use inside or outside of the car based on the fire behavior, as well as the opacity and toxicity of fumes produced during combustion.

Consisting of PA66 with 25% glass fiber reinforcement, LATAMID 66 H2 G/25-V0HF1 is one of the materials expected to become most successful in the railway sector due to its environmentally friendly self-extinguishing formulation, excellent mechanical properties, and especially its compliance to Hazard Levels HL1 – HL2 – HL3 set out in the EN 45545 standard for use both inside and outside of the car body (R22-R23).
The German world-leading company in the field of filtration systems for gases and liquids, has chosen LATAMID 66 H2 G/25-V0HF1 for the manufacture of the fastening systems used in filter elements for air purification of train compartments.

The choice was conditioned not only by the material approvals as per EN 45545, but also by the excellent self-extinguishing properties of the compound, i.e. UL94-V0 up to 0.75 mm, and high resistance to static and dynamic mechanical stresses.
Finally, dimensional stability is critical for the fastening system, which consists of brackets for which the absence of deformation and compliance with geometric tolerances is a necessary condition for proper functioning.

V0HF1 compound family includes grades developed on PA66, PBT, and PPA.
In particular, V0HF1 compounds based on PA66 are offered with 25-50% glass fiber reinforcement and UL certification so as to meet even the most demanding mechanical requirements as, for example, in the case of thermoset replacement.


GUIDEnano, European research project

GUIDEnano is a European research project funded under the 7th Framework programme developing a web-based guidance tool, which will help the nano-enabled products users to design and apply of the most appropriate risk assessment and mitigation strategy for a specific product.
GUIDEnano will provide a Tool to be used by industry with the aim to complement existing regulations in different frameworks.

By using this Tool, industry will be able to evaluate and efficiently mitigate possible health risks for workers, consumers and the environment associated to the use of nanotechnologies.
The report generated by the GUIDEnano Tool will be designed to ensure transparency of the process and facilitate communication and acceptance of the Tool outcome by regulatory agencies, occupational safety and health agents, insurance companies, and consumer protection associations.

LATI Industria Termoplastici S.p.A. is proud to be part of this International consortium with top level universities, qualified research institutes as well as important industrial partners.

More information can be found on the project website:

Technopolymers and drinking water: Latigloss proposal

Technopolymers and drinking water: Latigloss proposal

Replacement of metal with polymers is now an established process in the sector of drinking water transport.
LATI’s proposal for these markets is represented by LATIGLOSS, a wide family that includes structural grades based on PA66 and PPA with 40 to 60% glass fiber reinforcement, all certified for contact with hot and cold drinking water according to the strictest international NSF, KTW, ACS, and WRAS standards.

IDRAL, an Italian leading manufacturer of sanitary appliances for public environments and communities (schools and kindergartens, gyms, hospitals, etc.), has chosen LATIGLOSS 66 H2 G/50 for the manufacture of the self-closing tap for a new shower panel.
Material performance for this project should be the same as conventional metal solutions, that is, primarily excellent mechanical strength in order to ensure not only safe assembly, but also stability over time and in the presence of hot and cold mains water.

Excellent dimensional stability of products is also extremely important to prevent leakage and ensure the best seal between the linked parts.
Resistance to even hot mains water should also be considered, which is not a trivial aspect for polyamides due to the possible presence of disinfectants containing active chlorine.
Good aesthetic appearance is also a requested feature, which with highly reinforced plastic compounds is often difficult to obtain due to the presence of the fibers, unless the formulation has been optimized to this purpose, as in the case of LATIGLOSS.

The solution offered by IDRAL to the market is IDRALSave – SLIM, a shower panel with a slim, lightweight and modern design, suitable for any bathroom style thanks to the solidity of all its functional, innovative, and reliable parts.
LATIGLOSS compounds were also engineered to provide maximum versatility in converting processes. Molding requires no special equipment or technical measures, and the management of shrinkage and deformation is relatively straightforward.
LATI’s website provides a comprehensive overview of the possibilities offered by LATIGLOSS compounds, and engineers are at disposal for the development of any new project.

Flame-resistant zippers with General Zipp

Flame-resistant zippers with General Zipp

General Zipp is a company specializing in the world of zippers for the clothing industry, also intended for technical applications. So these systems are designed to meet the performance and safety requirements of the different application sectors.

The company’s wide product range includes fire-resistant zippers intended, for example, for the clothing of operators working in the presence of open flames, such as, for example, firefighters. In addition to the flame-retardant requirements, a zipper intended for such a critical use should be mechanically reliable even after exposure to high temperatures, contact with chemical substances, and ill-treatment.
For the manufacture of these zippers, General Zipp has chosen self-extinguishing thermoplastic materials, in which LATI is a leading player. In particular, LATAMID 66 H2 G/25-V0CT1 was chosen for the teeth and sliders, while LATAMID 68 H2-V0 was preferred for accessories.

The two compounds, respectively based on PA66 and PA6.66, offer not only outstanding flame resistance certified by UL94 approvals, but also the strength and toughness required for the safe use of the cloth.
The polyamide base resin ensures the intrinsic self-lubrication, which allows the slider to easily move on the teeth, thus supporting the effectiveness of firefighters at work. Finally, considering the size of the elements composing the zipper, in order to fill the cavities that constitute the teeth, the fluidity of the compound in the molten state is critical.

This is not a trivial peculiarity, since the formulation of LATAMID 66 H2 G/25-V0CT1 includes 25% by weight of glass fiber reinforcement and a considerable amount of self-extinguishing agent. The safety zippers have undergone the necessary type tests in accordance with EN ISO 14166, EN ISO 11612, EN ISO 11611 and EN 469; the latter expressly reserved to fireproof clothing for firefighters.
Certifications are completed by the compliance with the ministerial specifications. Once again, LATI compounds for special purposes prove themselves in an application sector with special technical requirements.

In particular, it is interesting to note that the compounds chosen by General Zipp ensure high performance even in other fields than those for which they were designed, typically the electrical and electronic field, where the high flame resistance is required by the safety standards for live equipment. LATI’s and General Zipp’s engineers are at their customers’ disposal to design the most reliable solutions for their respective industrial sectors.

PPS flow meters for liquid foods

PPS flow meters for liquid foods

LATI is paying close attention to the development of areas related to the food industry, from vending to coffee machines, from the transport of drinking water to food processing.
In order to be present in these markets, many LATI engineering compounds have been certified according to the regulations governing contact with drinking water and food.

DIGMESA, a Swiss leading company in the field of flow sensors, chose LARTON G 40 NAT:0169F1 for the manufacture of the housing and nozzles of a high precision meter meant for large household appliances.
Application requirements are among the most critical, because the material requires not only mechanical properties supporting 20 bar of measured fluids, but also resistance to high temperature, which in this case is between -10° and +100°C. Chemical resistance of base resin is also necessary to safely manage any type of liquid food without the risk of unwanted transfer, pollution or corrosion of the device.

Utmost compliance with dimensional tolerances of each part and coupling is also critical for precision instruments to ensure not only proper machine functioning, but also the absence of leaks and pressure losses.
In these cases, the use of a reinforced structural compound may present uncertainty due to differential shrinkages.

Usually, PPS-based compounds provide the best compromise between mechanical strength and dimensional stability. Hence, LARTON G/40 NAT:0169F1, a branched PPS with 40% glass fiber reinforcement, is the best solution for the project requirements.
This proposal is completed by the NSF51 certification for food contact. LATI’s range of compounds approved for contact with food and water includes not only the PPS described above, but also structural grades based on PP, PA, and PPA. LATI engineers are at disposal for any further information.

Safe and metal-free railway industry

Safe and metal-free railway industry

The railway industry is among the most active in the process of replacing metal and many thermosetting plastics.
The purpose is to gain lightness, compatibility with the environment and, of course, performance.

LATI has long since decided to believe in this innovation, and has expanded its range of EN 45545 and NFF16 101-102 certified materials also including compounds especially designed for highest mechanical, electrical, and flame resistance performance, such as LATAMID 66 H2 G/50-V0HF1.
Based on PA66 and with 50% glass fiber reinforcement, this compound provides a tensile strength of nearly 2,000 kg/cm2 without, however, becoming brittle, is UL94 V0 certified up to 0.75 mm, and provides excellent resistance to creeping currents, with a certified CTI of 600V.

The body of the new rotary switch manufactured by SPII, a leading Italian company in the design and manufacture of integrated driver desks and components for trains and subways, is made from LATAMID 66 H2 G/50-V0HF1.
Switch body and actuating lever requirements are drastic, as properly imposed by the sector of use. Static mechanical performance is to be associated to reliability over time, with a specifically high resistance to creep and fatigue.

Thermal requirements should consider operating temperatures from -40°C to +70°C, a range that is easily manageable by the selected LATAMID 66.
Certification of compliance with EN 45545 standard was also successfully obtained by LATAMID 66 H2 G/50-V0HF1 with a HL3 classification for the set of requirements R22 and R23.

This ensures absolute material reliability and safety as regards self-extinguishing properties and dangerous fumes for use both inside and outside the car body.
The innovative proposal by SPII becomes a new element of pride for the production of LATI, and confirms the common will to continue along the path that leads to the sale of increasingly high-performance and safe products for the customer and the environment.

Self-extinguishing materials now even 50% recyclable!

Self-extinguishing materials now even 50% recyclable!

Reducing the impact on the environment and human health: a fundamental cross-cutting theme for products and processes of the entire industrial world.
LATI is traditionally attentive to conduct its activities and propose materials in full compliance with the most stringent safety rules in the conversion, use and disposal of compounds placed on the market.

This is proved, for example, by the RoHS and Reach compliance of every grade belonging to the company’s product portfolio, the ISO 14000 certification, and the development of the LATIGEA sustainable product range.
The development of HF1, a family of halogen, red phosphorus, and antimony free self-extinguishing materials is also included in this context.
Recycling of already processed materials is naturally placed in the context of reduction in raw material consumption and complex production waste management.

Driven by these facts and particularly attentive customers, LATI wanted to get the approval by UL, an internationally recognized certification body, for the recovery of up to 50% by weight of production waste from one of the most important self-extinguishing grades of its range, LATAMID 66 H2 G/25-V0CT1.
UL officially allows the recovery of 25% by weight of already converted material.
Now, with this new approval, it will be possible to increase the amount of recoverable product, thus not only reducing the environmental impact associated with the production of plastic waste, but also obtaining a significant reduction in the cost of the finished product.
LATAMID 66 H2 G/25-V0CT1 is a flame retardant compound based on 25% glass fiber reinforced PA66 in which flame resistance and excellent GWFI and GWIT values are obtained with heat stabilized halogenated systems.

It is the CT1 formula that also allows subsequent molding operations without incurring significant degradation and deterioration of electrical, mechanical and flame protection properties. UL validated the extraordinary CT1 behavior, which did not show performance reduction, with 50% recovery in all colors.
This new approval makes the already brilliant CT1 proposal even more attractive for a variety of electrical and electronic applications both in industry – where the CT1 offers an extraordinary GWFI of 960°C – and the appliance sector, where self-extinguishing properties at low thicknesses require particularly high GWIT and GWEP.

Lightened structural compounds without blowing agents

Lightened structural compounds without blowing agents

Lightweight and strength are two properties that can hardly coexist.
For injection molded applications using thermoplastic compounds, structural materials with specific weights below 1.4-1.6 g/cc are difficult to imagine.
For most projects, densities of between 1 and 2 g/cc are not a problem, because they represent a considerable step forward compared to metals.

However, a weight reduction of even a few grams can provide enormous benefits to all those applications in which the inertia of the moving parts, also linked to the weight of the part, is the problem to be overcome to obtain, for example, shorter actuation times and lower energy consumption.

The conventional solution using blowing agents is not always easy to manage, and the results may not be up to the project requirements.
The LATIMASS 67-04 D009 compound is an effective tool for obtaining a remarkable lightening of structural polyamide-based thermoplastics.

Strengths of this LATI’s grade are both the matrix and the hollow glass spheres, a filler with very low apparent density behaving just like a blowing agent, but without the annoying limitations of systems based on the formation of gas cells in the polymer melt.
In fact, the hollow spheres have a defined geometry that is not altered during the molding process; once well dispersed in the compound, they are able to reduce the density of the resulting material by almost 20%, but in a homogeneous and uniform way.
The matrix of LATIMASS 67, instead, maintains the mechanical performance, so much so that the use of this compound as a master does not imply, in fact, tangible reductions in mechanical strength or embrittlement.

LATI Innovation Day

LATI Innovation Day

Promoting the concept of innovation across the conversion chain from the manufacturer of raw material to the OEM: this is the purpose of the first Innovation Day that LATI has offered to its customers on April 13th, 2016.

The themes behind the event also served as a thread for the meeting. First, the wish to consider the LATI company as in the center of an information circulation system in which the transfer of ideas is catalyzed by the company’s strategic position placed, by its nature, between end user, designers and converters.
From this strategic point of observation the wish arises to select the best customers among end users, molders and mold manufacturers, and to allow them to show their ideas and skills in a special display.

The contact between the various players and the exchange of proposals and solutions show not only the current state-of-the-art of the various technologies, but also the redefinition of project requirements based on the evolution of requirements, regulations and economic megatrends.
During the meeting, each reporter has explained the execution of an important project, in which technical and technological challenges have been faced and overcome using special materials, design and high-level technical measures, as well as cutting-edge processes.
The subjects of reports offered by LATI’s Customers were the most diverse: from the continuous evolution of metal replacement for structural use to the function integration, from the use of MuCell technology to improve the quality of surface finishes to the optimization of the mold layout.

Frontier proposals were also discussed in relation, for example, to the use of industrial automation in advanced molding, the integration of more busted functions, the 3D-MID technology and the use of special filaments for 3D printing of functional products and prototypes.
The goal of described solutions and processes is definitely productivity, understood as the ability to make best use of own resources – primarily equipment, time and capital – in order to produce the largest quantity of goods, of course, at the highest quality.
The exceptional feedback generated by this first Innovation Day opens the door to the next edition, scheduled for 2017, in which other LATI’s customers will have the opportunity to exchange ideas to increase and improve specialization and competitiveness.