TSWB®
INTUMESCENT / FIRE
PROTECTION ADDITIVE

Avtec's core technology, TSWB® is a fire retarding and smoke suppressing polymer additive. A non-toxic antimony and bromine-free white powder, TSWB® was created to incorporate into both thermoset and thermoplastic reinforced composites.

TSWB® will sharply reduce the propensity of a composite part to combust, generate smoke or transmit heat when exposed to open flame or high radiant heat. TSWB® is a singularly unique composition that chemically reacts at approximately 600˚F (316˚C) to form a charred, cement reinforced surface. This intumescent concretion mitigates surface flammability and smoke development behavior. TSWB® is especially appropriate for end-use applications that require life-safety fire, smoke and toxicity code compliance.

TSWB® Product Bulletin

TSWB® MSDS Bulletin

What does a TSWB® modified laminate look like when exposed to open flame or high radiant heat?

Two VE Laminates Exposured to Torch Fire (PP Presentation)

TEST RESULTS

ASTM 1354 Cone Calorimeter Test Results:

Comparison Photos of a Brominated and a TSWB® Filled Specimen Before and After Cone Testing to 50 kW/m² Heat Flux

Vacuum Bagged PE Laminate with TSWB

Vacuum Bagged VE Laminate with TSWB

Vacuum Bagged Epoxy (1) Laminate with TSWB

Vacuum Bagged Epoxy (2) Laminate with TSWB

Analytical Bromine Level Toxicity Test Result:

Mass Spectrophotometry Bromine Analysis Report

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