Flame Retardant Foam

Performance Indicators

Our Silicone Flame Retardant Foam Board

PU Flame Retardant Foam

PE Flame Retardant Foam

Neoprene Flame Retardant Foam

Rock Wool Foam

Flame Retardant Grade

UL94 V-0, HF-1 (highest level), non-combustible, no dripping, low smoke

UL94 B1/B2, combustible, produces dripping and a lot of smoke when burned

UL94 B1/B2, flame-retardant but not non-combustible, easy to melt and drip

UL94 B1, flame-retardant, may burn under direct flame, slight smoke

A1 grade non-combustible, but produces smoke when heated

Smoke Density (Ds, 1min)

＜15, low smoke, no toxic gas emission

＞50, high smoke density, releases toxic gases (formaldehyde, cyanide)

30-50, moderate smoke, no obvious toxic gas

25-40, slight smoke, no toxic gas

＞40, smoke when heated, no toxic gas

High-Temperature Resistance

Continuous use: -50℃~220℃, intermittent: up to 250℃, special grade up to 500℃

Continuous use: up to 82℃, degrades and burns at high temperature

Continuous use: up to 70℃, softens and deforms at high temperature

Continuous use: up to 93℃, unable to withstand high heat for a long time

Continuous use: up to 650℃, but poor flexibility

Environmental Protection

Non-toxic, odorless, RoHS compliant, no harmful substances, recyclable

May contain harmful flame retardants (bromine), releases toxic gas when burned, not environmentally friendly

Non-toxic, but difficult to degrade, poor environmental protection

Non-toxic, but contains chemical additives, poor aging resistance

Non-toxic, natural inorganic material, environmentally friendly but easy to absorb moisture

Flexibility & Processability

High flexibility, good compression resilience (compression set ＜5% at 100℃ for 22h), easy to cut, punch, paste, suitable for complex shapes

Brittle, easy to crack, difficult to process into complex shapes, poor resilience

Good flexibility, but poor compression resilience, easy to deform after long-term use

Good flexibility, but poor high-temperature resilience, easy to age and harden

Hard and brittle, easy to break, difficult to install on curved surfaces

Thermal Insulation Performance

Thermal conductivity: 0.06 W/(m·K), stable insulation effect at high temperature

Thermal conductivity: 0.030-0.040 W/(m·K), insulation performance degrades at high temperature

Thermal conductivity: 0.035-0.045 W/(m·K), average insulation effect

Thermal conductivity: 0.040-0.050 W/(m·K), ordinary insulation effect

Thermal conductivity: 0.035-0.045 W/(m·K), good insulation but poor sealing

Service Life

10-15 years, excellent aging resistance, stable performance in harsh environments

3-5 years, easy to degrade, short service life

4-6 years, poor aging resistance, easy to crack outdoors

4-7 years, susceptible to ozone and UV, performance declines rapidly

5-8 years, easy to absorb moisture and agglomerate, need regular replacement

Application Scenarios

Electronic equipment, automotive engine, industrial furnaces, aerospace, high-temperature pipelines, public places (high safety requirements)

Building interior insulation, low-temperature pipelines, ordinary packaging (low flame retardant requirements)

Daily packaging, low-temperature insulation, light industrial equipment

HVAC systems, industrial gaskets, automotive parts (low-temperature environment)

Building exterior insulation, industrial kilns, high-temperature pipelines (non-flexible requirements)