| May 31, 2025
Foam XP-18UL Fire Retardant
When it comes to packaging and technical solutions, safety and regulatory compliance are just as important as functionality. That’s why Worldwide Foam is proud to introduce XP-18UL, our latest innovation in fire-retardant foam.
This material is engineered to meet strict safety standards while offering all the benefits of high-quality XLPE (cross-linked polyethylene) foam.
What is XP-18UL?
XP-18UL is a closed-cell foam with a density of 1.8 lb/ft³, chemically cross-linked and specifically designed to be fire-retardant. It has been developed to meet UL 94 HF-1, one of the most recognized industry standards for evaluating plastic flammability.
Thanks to this rating, XP-18UL is ideal for applications that require fire resistance, self-extinguishing properties, or controlled burn rates. It’s available in 4” x 39” x 79” blocks and comes in a charcoal color—an excellent choice for manufacturers and designers who prioritize safety in both their processes and end products.
Benefits of XP-18UL fire-retardant foam
Choosing the right fire-retardant material isn’t just about compliance—it’s about performance, reliability, and adaptability. XP-18UL delivers on all fronts.
Regulatory compliance
Certified to UL 94 HF-1, XP-18UL meets rigorous fire safety requirements.
Automotive industry compatibility
Most of our XLPE foams and Zotefoams products also meet FMVSS-302, the federal specification for evaluating horizontal burn rates in motor vehicle materials.
High structural quality
Its closed-cell structure offers resistance to water, chemicals, and compression while delivering excellent resilience and long-term durability.
Versatile applications
Perfect for insulation, gasketing, sealing, cushioning, and protection of components exposed to heat sources.
Common XP-18UL applications
Thanks to its flame-retardant properties and XLPE composition, XP-18UL is widely used across multiple industries:
Automotive industry
XP-18UL meets FMVSS-302, making it ideal for interior vehicle components, door panels, insulation, and heat-exposed seals. Its flame resistance and closed-cell design offer safety and reliability.
Electronics and anergy insulation
Electrical and electronic equipment often operates under high temperatures. XP-18UL helps safeguard components from short circuits, overheating, and thermal damage.
Industrial and construction applications
This foam is well-suited for sealing and thermal insulation in machinery, HVAC systems, electrical enclosures, and more. Its UL 94 HF-1 rating ensures performance in demanding environments.
Protection of sensitive products
In industrial and electronics packaging, using closed-cell foam with flame-retardant capabilities provides extra safety during storage and transport.
Why choose XLPE and Zotefoams?
At Worldwide Foam, we utilize premium materials like XLPE and Zotefoams—renowned for their purity, consistency, and technical performance. We blend innovation with regulatory excellence, ensuring that products like XP-18UL meet and exceed expectations—even in industries with strict compliance requirements like automotive.
Fire safety is a critical factor in industrial and automotive product design. XP-18UL offers an effective, certified, and versatile solution, combining the superior properties of XLPE with a high-performance, closed-cell foam structure.
It meets key safety standards, including UL 94 HF-1 and FMVSS-302, making it the ideal choice for vehicle interiors, electrical systems, technical packaging, and more. Looking for more information or a free sample?
Contact us today and one of our specialists will help you find the best fire-retardant foam for your application.
Worldwide Foam
We are leaders in the supply of closed cell polyethylene foam in Mexico. We support various industries by offering a wide range of products and complementary services.
