Ace Mastik Ablative Sealant

Fire Retardant Coating Compound


Ace Mastik Ablatave Sealant is a flexible sealant which effectively closes the annular gaps in a fire stop system and fire rated building joints. It is a single component gun injectable grade sealant which cures at general ambient conditions to form a flexible tight fire seal. The seal also acts as a good barrier against airborne sound transmission.

The product is available for various conventional panel type standard fire stop systems and all types of building joints. The product is tested as per ASTM E 814 & UL 1479.


  • It has a fire rating of up to 4 hours
  • It expands in fire and protects pipes & cable penetrations
  • It is water - based, halogen and solvent free
  • Easy to apply
  • Good adhesion without use of a Primer
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    Life Expectancy 40 Years
    Density 1.30 to 1.45 gms/ cm3
    pH 6.0 to 8.0
    Appearance Grey / Off white caulking compound
    Odor Odorless
    Curing time 2 to 3 mm in 2 days
    Flash Point None
    Resistance to moisture & humidity Good
    Toxicity Non Toxic
    Application Temperature 5°C to 50°C
    Flexibility /Movement +/-25%
    Recommended minimum thickness/ depth 12 mm to 15 mm in annular space
    Shelf Life 12 months in a dry place with original packed condition
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