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SIL Silicone Firestop Sealant

SpecSeal SIL300 Silicone Sealant is a high performance silicone firestop sealant tested to resist the passage of smoke, flame and water through construction joints and through-penetrations. SIL300 Sealant cures to form a flexible seal and carries a Class 1 W Rating for water resistance (Per ANSI/UL1479).

Test Standards

ASTM C920

ASTM E814 (UL1479)

ASTM E1966 (UL2079)

CAN/ULC-S115

ASTM E119 (UL 263)

Third Party Approvals
UL logoFM logoFBC logoSpears logo
Applications
Blank Opening

Blank Opening

Bottom of Wall

Bottom of Wall

Busway

Busway

Cable Tray

Cable Tray

Floor to Floor

Floor to Floor

Floor to Wall

Floor to Wall

Head of Wall

Head of Wall

Metal Pipe

Metal Pipe

Multi. Pen.

Multi. Pen.

Wall to Wall

Wall to Wall

Properties
Autobonding

Autobonding

Flexible

Flexible

Joint Movement

Joint Movement

Low VOC

Low VOC

Permanent

Permanent

Self Leveling

Self Leveling

Silicone

Silicone

Smoke Barrier

Smoke Barrier

STC Rating

STC Rating

Water Resistant

Water Resistant

Product Details

Features

  • Available in a Gun Grade or Self Leveling
  • Ozone and UV Resistant
  • Excellent recovery from joint extension and compression
  • Listed in over 175 UL Tested Systems!
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