环氧煤沥青防腐漆
introduction:
the paint is made of modified epoxy resin, coal tar pitch, active diluent, pigment and filler, additive and new curing agent. there are no solvent in the paint. the problems caused by volatilization of solvent is avoided. the compactness of the film is enhanced. the pollution to the environment is reduced. the bacterium on the surface of the film are restrained because of the coal tar pitch. the paint enjoys good construction property and can form the film for one time. so it save the cost. the paint is used to prevent the exterior wall of underground pipeline and underwater steel structure and concrete structure.
projects standards:
film character standards:
|
number |
project |
standard |
|
primer |
topcoat |
|
1 |
pigment |
deep brown |
black |
|
2 |
fineness |
≤100 |
≤100 |
|
3 |
content of film former, (%) |
≥94 |
≥94 |
|
4 |
drying time |
drying time surface(25℃)，h |
≤1 |
≤4 |
|
5 |
hard drying time (25℃)，h |
≤6 |
≤16 |
|
6 |
elongation % |
1 |
2 |
|
7 |
adhesion level |
1 |
1 |
|
8 |
hardness |
≥0.4 |
|
9 |
impact strength cm |
≥50 |
≥50 |
|
10 |
power frequency electrical appliance strength, mv/m |
≤≥20 |
|
11 |
water absorption（25℃，24h），% |
≤0.4 |
film structure: recommend one layer of primer with two layers of topcoat. the thickness of each layer of dry film is about100μm. the total thickness of dry film is more than 300μm. |
