How to use polyurethane sealant-TENGYU CHEMICAL (LONGKOU) CO., LTD

1. Treat the construction surface: Use a brush or cloth to clean the construction surface.

2. Strip filling material: When squeezing the polyurethane sealant into the gap, it should only adhere to the two sides of the joint. If the sealant adheres both sides to the bottom surface, the sealant and the bottom surface cannot move freely, which will cause the sealant to adhere to both sides or the sealant itself to be damaged. Therefore, when using the sealant, a round polyethylene foam strip 1-2mm wider than the seam must be embedded at the bottom of the gap.

3. Paper tape: In order to avoid contaminating the surfaces on the left and right of the joint when applying the primer and squeezing the sealant, paper tape must be applied and torn off after the construction is completed.

4. Primer: Apply the primer to the adhered surface with a brush to increase the adhesion between the sealant and the building materials.

5. Filling polyurethane sealant: Align the front end of the sealant tube with the joint, cut off the tube head with a knife according to the size of the joint, and squeeze the sealant with an extrusion gun to completely fill the joints and corners. Be careful not to mix in bubbles. Use it as soon as possible after opening.

6. Finishing: After filling, use a pressing spoon or scraper to press the sealant into the seam. If the construction tool is wet with soapy water, the construction surface will be more beautiful. Tear off the paper tape after completion.

How to use polyurethane sealant

-CONTACT US-