DOWSIL™ 335 Special Black Butyl Primary Sealant

Insulating Glass Silicone Sealants
MS Polymer

DOWSIL™ 335 Butyl Sealant Special Black is a one component heat applied Polyisobutylene specifically designed for high performing gas-filled multiple pane insulating glass in commercial and residential applications. It is solvent-free and odorless.

Product info


  • The colour ‘special black’ is matched to our insulating glass silicones DOWSIL™ 3362 Insulating Glass Sealant and DOWSIL™ 3363 Insulating Glass Sealant for homogeneous color and aesthetics at the glass edge

Technical Information

Where to use Interior/Exterior
Paintable No
Shelf life 36 Months
Sizes 7.4kg slugs (cylinders)


Application Instructions

Contact our expert team for advice, training and application instructions for this product!