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Fire-Retardant-Mastic Fire-Retardant-Mastic Fire-Retardant-Mastic


Flame retardant mastic is thick black jelly made of asphalt or epoxy resin, added with mineral and adequate flame retardant, it could be use in normal temperature, not shrink or crack during moulding, after moulding it develops with its final set a firm, drable surface with good resistance to acids, alkalis, abrasion and weathering stablilty,  also it has air-tightness, water impermeability, cold resistance, corrosion protection, fire retardant, hard to deteriorate or crack by ages, and long-term application, this product contains no asbestos, lead mercury or mercury compounds.

Product Description

Technical Data

Test ItemsUnitTechnical Data 
Flame Retardant Mastic
DensityKg/m³ 1300±100
Bonding StrengthMpa≧0.25 (20℃)
Oxygen Index
Fire ResistanceDo not cause flame spreading during construct excution, flame retardant after dried, flame will self-extinguish within 1s after fire source leaves.
Heat Durability
No flowing or bubble, after 4 hours at 95℃,  then 1 hour at 120℃(positioned at 45°);
Freezing Resistance
No cracks or flak after 2 hours at -60℃
Water Absorption≦0.5% by weight(soak in water for 24hours at room temperature).
Drying TimehSet to touch: 5 hours, dry through: 7days.
Volatiles %≦30
Service Temperature -60℃~95℃

Product Application

It is a ideal cold insulation and vapor barrier coating material providing cryogenic thermal insulation, fire proofing and moisture resisitance together with insulation materials like cellular glass, PIR-polyisocyanurate and PUR-polyurethane in petrochemical industry. it is applied to tank, pipeline, vessel and etc.  In addition, mastic is commonly used in residential as waterproofing material for roof waterpoof, aqueduct joint sealant, etc.

Packing and Storage

Packed in iron pails, 30kg/pail

Store at room temperature, and light proof place.

Application and Cautions

Handle gently during moving to avoid packing damage;

To provent water infiltration, properly joints all penetrations before apply.

Keep ventilation during application, keep container sealed when not in use;

Recommended coverage: 6~8 kg/m2

Download:Fire-Retardant-Mastic Details