Application

APPLICATIONS

Specially formulated for bonding and sealing of various construction materials and for expansion joints, in window frames, automotive industry, assembly and piping.This Glue and Sealer adheres without primer on substrates commonly used in construction, such as wood, anodized aluminium, polyester, glass, concrete, stone, ceramic, iron, brick.
For difficult materials, including PVC plastics, ABS, PMMA or materials such as lacquered aluminium and metal, we recommend preliminary testing to determine if the surface needs preparation.

PREPARATION

• Surfaces must be thoroughly clean and dry, degreased and free of any friable particles which might impair adhesion. Acetone, alcohol or a degreaser can be used to clean the substrate. Check compatibility of SEAL&BOND PU 40 with the substrates. If necessary, apply a primer according to instructions.
• For better adhesion rub the metal surfaces before use. Subsequently, re-clean the surface and allow to dry. We recommend cleaning the concrete with a metal brush.

APPLICATION

• If necessary, use joint bead to avoid tri-point contact and observe the width/depth ratio defined by the following rule: ideal joint depth = joint width / 2, with a minimum depth of 8mm.
• The application temperature must be between +5°C and +35°C.
• Apply crepe tape on the sides of the joints to protect the places where it should not have contact.
• Cut the tip and place in the cartridge. It is recommended that this cut be made at 45°C, at the diameter required for sealing the joint.
• SEAL&BOND PU 40 can be applied using a manual or pneumatic gun.
• Apply the product in uniform, continuous beads for sealing, and/or in dots if gluing, at regular intervals of a few centimetres.
• After application, use a spatula to smooth the joint with soap and water and remove the crepe tape before filming. If gluing, apply pressure between the materials to be glued.
• The curing process begins when it comes into contact with air humidity, this being done from the outside inwards by 3mm every 24 hours

CLEANING

• Tools can be cleaned, acetone before the sealant cures.
• After curing, it can only be removed by mechanical action.

PAINTING

• It can be painted with most water based paints after the product is fully cured.
• If the paint is solvent based, tests must be done beforehand.