Thermal Heat Shield Silicone Rubber Exhaust Sleeve is a glass textile sleeving coated with silicon rubber and manufactured with non-alkali fiberglass fibers.

This exhaust sleeve is fireproof and flexible. 

BSTFLEX exhaust sleeve have quality assurance.

Certifications for exhaust sleeve:
MSHA, -70 degree C Test, 260 degree C test, UL 1441, ROHS, REACH
DIN EN45545-2:2020 Rail Certificateion
DIN 45545 Low smoke toxicity
DIN 54837/5510-2 Rail vehicle certificated for resistant to combustibility
NF EN ISO 11925-2 (15 AND 30 SEC)
TB/T 3138-2018 Technical specification of flame retardant materials for railway locomotive and vehicle

Exhaust heat sleeving lagging features:
Protects from Extreme Heat
Thermal and Abrasion Resistant
Silicone-Coated Fiberglass Fire Sleeve
Continuous Protection to 1200 Degrees F
Short-Term Protection Exposure to 2200 Degrees F

BSTFLEX is also make other exhaust insulation products, more information please contact us.