It is common for the resin to feel sticky after it has dried. This problem occurs with most unsaturated or vinyl resins because the resin reacts with oxygen when it cures. You can solve this problem by adding, for example, 5% wax to the last coat of resin. Be careful not to add too much wax, which can easily cause the surface gloss to drop.
When the surface feels sticky after the resin is cured, there may be several reasons:
Uncompletely cured: The resin may not have fully reacted or cured during the curing process. This may be caused by insufficient curing time, inappropriate temperature, or incorrect amount of curing agent used. If the resin surface is still sticky, it may take longer to cure or adjust the curing conditions to ensure that the resin is fully cured.
Residual substances: After the resin is cured, unreacted chemicals or additives may remain on the surface. These residual substances may cause the surface to feel sticky. During the manufacturing process, ensuring that the resin and curing agent are thoroughly mixed and following the correct process steps and recipes can reduce the generation of residual substances.
High humidity environment: High humidity during the resin curing process may cause the resin surface to absorb moisture, making the surface feel sticky. During the manufacturing process, controlling humidity and maintaining a dry environment are important for obtaining good curing results.
Release agent residue: If a release agent is used before curing and the residue is not completely removed or stripped, the surface may feel sticky after the resin is cured. Proper release agent application and thorough cleaning can avoid this.
If the surface still feels sticky after the resin is cured, the above factors can be checked and appropriate measures can be taken to correct it. If the problem persists, it is recommended to consult the manufacturer or relevant professionals for more specific guidance and suggestions.