Elastic Epoxy Coating

GENERAL

Elastic Epoxy Coating can be used for anti-abrasion and anti-cavitation protection of high-speed water scouring parts such as diversion tunnels and water conveyance corridors of hydropower stations and other hydraulic structures, as well as freeze-thaw protection, ion penetration protection, etc. of concrete.

Application

Protection of structure of hydraulic structures such as dam, concrete cut-off wall and so on.

FEATURE

High performance of elongation at break

PERFORMANCE

Sr.No.	Items	Index
1	Component A	Gray paste
1	Component B	Yellow to brown viscous liquid
2	Solid content	100%
3	Tack-free time (h)	≤8
4	Tensile breaking strength (MPa)	≥12
5	Tensile elongation at break (%)	≥8
6	Bonding strength (MPa)	≥4 (or the mortar body is broken)
7	Abrasion resistance [40m/s, h/(g/cm2)]	≥100

Construction process

For cracks with a width of <0.2mm, a surface-closed treatment method is adopted: the cross-joint frame is coated with elastic epoxy coating to close the joint surface and prevent deep erosion.

Construction technical requirements:

1) Check and determine the cracks on the surface of the concrete to be treated (crack width <0.2mm), record the length and direction of the cracks, and compile a crack distribution map.

2) Clean the crack surface: use a wire brush or a polisher to remove the attachments, cement scum and other dirt on the concrete surface, and clean it up.

3) On the crack surface, stick the mesh cloth with elastic epoxy coating on the crack surface according to the method of "two glues and one fabric". When bonding, the basal plane should be clean and dry, and the glue should be full and even. The grid fabric should be pasted densely and smoothly, without bulging or air bubbles, and the grid fabric pasting width should be 20cm.