I believe you are not new to polyurethane elastomer, there will be a variety of problems in the production process. To solve these problems, we can adjust the raw materials, control the temperature, select the release agent and improve the operation method of the release agent. Today, let's talk about the problems of polyurethane elastomer release agent on products and solutions.
01
Damage and flow mark on product appearance
ask
Why is the surface of the product damaged, streaked and unsightly after manufacturing?
answer
Because the mold release agent is not evenly applied when it is applied, the mold release agent will gather and lead to product problems.
Solution
Can be used in the use of concentrated solution and diluted release agent must be wiped evenly, so that release agent in the mold surface evenly covered.
02
Product surface gloss
ask
Why is the surface glossiness not enough after the production of the product, resulting in matte phenomenon?
answer
Because the mold release agent contains wax.
Solve
Silicone oil mold release agent can be used to make the surface brightness of the product meet the requirements.
03
Wrinkles on the product surface
ask
Why is the surface wrinkled after the product is made?
answer
Because of the high temperature of the iron core when the pre curing is finished and put directly into the curing workshop, the polyurethane will accelerate the reaction before it is evenly distributed in the mold during pouring, resulting in the surface wrinkles.
Solve
It can be taken out after pre curing, wait for the temperature to cool slightly, and then put into the oven for pouring.
04
Post printing of product surface
ask
Why is the font printing unclear or impossible after the production of the product?
answer
Because of the silicone oil in the mold release agent, the typography can not be printed on the product.
Solve
The silicone oil composition in the release agent can be changed, and the wax release agent can be used to make products.