moisture curing polyurethane sealant sikaflex 221 with high quality

Single component polyurethane sealant/binder.

It has an elastic and low volatile odor. Anti-aging and weathering, no corrosion.The surface can be painted and polished.
Can bond a variety of materials. Access to food is approved.

Applicable materials include wood, metal, metal primer and paint (double component), ceramic materials and plastics.

1.Sikaflex-221 is a high-quality, multi-functional, non-mobile polyurethane sealant, which forms a permanent elastic substance with the moisture in the atmosphere.
It has been used for many years.
Sikaflex -221 is manufactured in strict accordance with the ISO9001/14001 quality assurance system.
2. The Sikaflex -221 is solidified with moisture in the atmosphere, usually with a low temperature, and the lower the moisture content in the atmosphere, so the process of the gourd is also slower.
3. Chemical resistance of polyurethane sealant:
Sikaflex -221 has resistance to fresh water, seawater, lime water, sewage flow, dilute acid and dilute alkali;
Temporary resistance to fuel oil, mineral oil, vegetable oil, animal fat and crude oil;
There is no resistance to organic acids, alcohol, concentrated mineral acids, concentrated bases and solvents.
The above instructions are only for general guidance, and we will advise on specific applications as required.
4. Preparation of adhesives before construction: the surface must be clean, dry and remove all kinds of grease and dust.
5. Surface spray paint:
The Sikaflex -221 table can be painted on the surface after drying.
However, the compatibility of the paint should be tested before spraying, and the initial test should be carried out.
The porcelain must be cured after the Sikaflex -221 is completely cured.

It should be understood that the thickness or hardness of the coating can weaken the elasticity of the glue and lead to the coating cracking.

Wood, metal, ceramics, plastic.