Verified by manufacturer 4 months ago
Solvent-containing bitumen primer
Suited for all absorbent mineral surfaces, metal sheets, wood and bitumen roofing felt. Suited as primer for bitumen thick film sealants and cold applied self-adhesive bitumen membranes, as well as overcoating old layers of bitumen (refurbishment of old thick film sealants and bitumen coatings).
Koster Bitumen Primer is a cold applied, low odour, solvent-containing bitumen primer. It contains a bonding agent admixture and displays excellent penetration properties. It acts as a dust binder and as a bonding agent for subsequent hot or cold applied liquid bitumen coatings and self-adhesive membranes.
Color | Black |
Warranty description | Ten year |
Uniclass | |
CAWS | J21/10 Warm deck roof coating J21/110 Warm deck roof coating J21/115 Warm deck roof coating J21/120 Inverted roof coating J21/125 Inverted roof coating J21/15 Skirtings/ Vertical work J21/20 Skirtings/ Vertical work J21/320 Primer J21/5 Warm deck roof coating J30/10 Cold-applied damp-proofing J30/110 Cold-applied tanking J30/130 Cold-applied damp-proofing J30/150 Hot-applied damp-proofing J30/20 Hot-applied damp-proofing J40/150 Loose-laid bitumen damp-proofing J40/160 Loose laid bitumen damp proofing J40/170 Loose-laid bitumen gas-retardant membranes J40/180 Self-adhesive bitumen membranes J40/190 Self-adhesive bitumen damp proofing/ tanking J40/210 Fully bonded bitumen damp-proofing membranes J40/250 Fully bonded bitumen tanking membranes J40/251 Fully bonded bitumen tanking sheet J40/260 Fully bonded bitumen damp-proofing/ tanking membranes J40/270 Fully bonded bitumen damp proofing/ tanking sheet J40/280 Fully bonded bitumen gas-retardant membranes J40/285 Loose-laid bentonite damp-proofing/ tanking membranes J40/335 Primers J40/40 Self-adhesive bitumen membranes J40/45 Self-adhesive bitumen gas retardant damp proofing/ tanking J41/10 Reinforced bitumen membrane warm deck roof covering J41/110 Built-up reinforced bitumen membrane warm deck roof covering J41/115 Single-layer reinforced bitumen membrane warm deck roof covering J41/12 Reinforced bitumen membrane cold deck roof covering J41/120 Built-up reinforced bitumen membrane inverted roof covering J41/125 Single-layer reinforced bitumen membrane inverted roof covering J41/130 Built-up reinforced bitumen membrane cold deck roof covering J41/135 Single-layer reinforced bitumen membrane cold deck roof covering J41/322 Primer J42/10 Warm deck roof covering J42/110 Warm deck roof covering J42/120 Inverted roof covering J42/130 Cold deck roof covering J42/320 Primer |
Colour | Black. |
Solids | Manufacturer guidanceApproximately 40% by weight. |
Density | 0.88 g/cm³. |
Temperature | 2–30°C. Guidance for specification option: Processing temperature. |
Drying time | 1 H. Guidance for specification option: Approximately. |
Contains Red List materials | No |
Recyclability | No |
Recycled contentAs defined in clause 7.8 of BS EN ISO 14021 | 0 % |