1-C-Acrylate sealant

COSMO® DS-420.300

Fire Protection

COSMO® DS-420.300 is an odorless, single-component acrylate sealant for fire protection joints with up to four hours of fire resistance – ideal for indoor and outdoor applications with moderate expansion stress.

SPECIAL CHARACTERISTICS

• In case of fire, it withstands up to four hours 
• Plastic sealing joint 
• free from solvents, isocyanate and silicone 
• Odourless 
• good dispensability 
• short thread tension 
• Surface can be smoothed well 
• Thixotropic, does not drip off 
• good adhesion on all common building materials 
• Low shrinkage 
• Can be applied outdoors (except for permanent moisture exposure) 
• Good UV-stability 
• Can be over-coated with many paint systems 
• Long shelf life

APPLICATION EXAMPLES

• Structural joint sealant for façade joints with moderate tensile stress 
• Sealing of fire protection joints indoors and outdoors 
• Sealing of window and door connection joints and shutter housings 
• Sealing of ceiling connections, lightweight walls, plastic tubes and for pointing of cracks

CERTIFICATS / TEST REPORTS

As per EN15651-1, classified as F-EXT-INT 12,5 P 
As per EN 1366-4, classified as fire 240 EI 
According to EN 13501-1 classified as fire class E