Polyurethane sealants | DCP

Polyurethane sealants

Polyurethane sealants

Tools and Equipment

Substrate and joint Preparation

All joints to be sealed must be clean, dry and free from any laitance, wax, grease, dirt and oil or any contaminations such as release agents, curing compounds, laitance, dust, dirt, cavities, projecting nibs, etc.
Excess laitance, old coating or surface treatments are best removed by mechanical grinding, light sand/grit blasting followed by vacuum cleaning to remove dust debris. All preparation equipment should be of a type approved by DCP.

Application

Install polyethylene joint backing rod to control the sealant depth
Apply the masking tape
Cut the seal at the top of the sausage
Apply the sealant with steady pressure
Tooling and finishing should be carried out immediately after the application
Remove the masking tape

Products & Consumption

Flexseal PU440 : One component, non sag, elastomeric polyurethane sealant with high tear and weather resistance
Calculate the needed quantity using DCP Joint Sealants Calculator