Skip to main content

The reason why liquid silicone does not solidify or is incompletely solidified

When we use liquid silicone rubber to make a silicone mold,we may find that the silicone rubber have not cured or not cured completely after 48 hours.What are the causes of this?

In the experience of  liquid silicone rubber factory,there are 5 possible reasons that generate the silicone not cured or cured not completely.

Reason 1:Too much or too much curing agent can be influence silicone to cure.

Resolution:Add curing agent due to prescribed ratio,and please note instruction that the mixing ratio is by volume or by weight.

Reason 2 :Different types of curing agents can not be mixed, addition silicone will not cure if it contact the tin composition in condensation silicone.

Resolution:Use the corresponding types of curing agent and the tools are not mixed. Never contact the condensation silicone product when you are using the addition silicone rubber.

Reason 3:Silicone and curing agent are uneven mixing.

Resolution:Silicone and curing agent should stir evenly,especial in the bottom of the container.

Reason 4:The silicone have been cured completely except the contact surface of the original object.

Resolution:Coated with a layer of release film on the original object to prevent silicone rubber contact with the composition in the original object against silicone to cure.

Reason 5:The temperature is too low to cure,when the temperature is lower than 0℃, part A and part B will not cure.

Resolution:20-30℃ is the ideal temperature for mold silicone to cure.

Labels:

Comments

Post a Comment

Popular posts from this blog

About artificial culture stone-colored silicone molds difficult problem

Currently the production of artificial culture stone steps mainly in ten steps, namely: model sculpture model processing → Templates → production → Templates → Partition → model paste brushing silicone mold release preparations →  first layer of silicone brush silicone perfusion → off mode. According to the above ten steps, we can see that the production of artificial culture stone mold is the most important use of templates. Artificial culture stone silicone Culture stone generally use a silicone mold, the first use of ocher color modulation, culture stone, culture brick color palette depending on the circumstances, the color of soil is basically a dozen colors, different colors can be mixed to achieve the color you need, color is a key issue, the color is not uniform culture stone, generally do so, first bring up the light brown, and then bring up the gray, light gray in the recall, these three different colors sprayed internal mold, not the whole entire spray again, put the mold int
Post a Comment
Read more

rtv-2 liquid silicone rubber not curing the reason

Users sometimes use liquid silicone curing problems encountered, now our summarizes five kinds of the cause of the rtv-2 liquid silicone not curing and their solutions, we hope to help. 1. A curing agent or too little of the curing agent will affect the cured silicone. According to the provisions of the curing agent is added, and should see clear instruction is the proportions of the volume or weight. 2. Different types of curing agents can’t mix, add molding glue exposure to tin ingredients in the condensation silicone will not respond. With the corresponding models of the curing agent. Operating tools are classified, do not mix. If you are operating plus molding silicone, do not come into contact with condensation products. 3. Silicone and curing agent do not stir evenly. Silicone and curing agent operation to fully stir well. 4. Incomplete cure (not dry) in the contact surface occurs only master, the other parts of the intact curing. Marked on the surface of the master mold with a t
Post a Comment
Read more

Adult sex products liquid silicone use FAQs

Adult sex products for the two-component addition cure silicone rubber, consists of two parts: A component is a silicone, B component is a curing agent; two components mix ratio of 1:1 ratio. After vulcanization becomes soft, resilient material of low hardness after curing, good tear resistance, good color sense, good texture and other characteristics. Can be made, such as the human body, insoles, shoulder pads, patch, anti-slip mats and other flexible silicone rubber products, but also for the simulation of human facial silicone molds, mainly for the human face, supplies, human organs, mimicking the body shape, the same type, changing shape, soft touch. Adult supplies silicone had a very strong smell, which is due to not using odorless curing agent in the production of secondary sulfur can remove this odor, the harm to the human body is very small and can be ignored, and this is inevitable scented products after all any vulcanized silicone products will smell over time. Friendly remin
Post a Comment
Read more