What is the effect of adding too much gel coat curing agent?
Too much gel coat curing agent may have some impact on the construction quality, which will accelerate the gel coat gel time, which means that the gel coat pinhole/bubble rate increases, but there is no curing when it reaches a certain extent, and the transaction after curing is brittle and can be peeled off. Including:
1. Accelerated curing rate: Excessive curing agent will accelerate the curing rate of the resin, resulting in shorter construction time. This may prevent construction personnel from completing the expected work steps, such as coating, leveling, or repairing.
2. Damaged resin performance: Excessive curing agent may have a negative impact on the performance of the resin. Resins may become fragile, fragile, or reduce their corrosion resistance. This may lead to poor performance of fiberglass materials after construction when subjected to loads or environmental stresses.
3. Surface unevenness: Excessive curing agent can cause the resin to quickly solidify during the construction process, forming uneven, bubbly, or uneven surfaces. This may affect the construction quality and appearance effect.
4. Reduced adhesion: Excessive curing agent may cause a decrease in the adhesion of the resin, making it difficult to firmly bond with the substrate or other coatings. This may lead to poor adhesion of the coating, which can easily peel or peel off.
In short, do not over catalyze or under catalyze. Excessive curing agent can plasticize the gel coat, which can reduce water resistance, accelerate chalking and corrosion. A poorly cured gel coat is fragile and will deteriorate due to aging. The recommended curing agent dosage is 1.2% to 3% (1.8% at an ideal temperature of 77 ℉ (25 ℃)) MEKP (concentration of 9% reactive oxygen species).
Please note that the above effects depend on the degree and specific situation of the curing agent added. If excessive addition of gel coat curing agent is found, it is recommended to take timely corrective measures, such as increasing construction time, adjusting construction conditions, or manually repairing. It is best to consult a professional anti-corrosion construction company or engineer to obtain specific suggestions and guidance in order to ensure that the construction quality and final effect meet the requirements.
