Common problems with prototype silicone compound mold

The prototype silicone series is a liquid that flows, no matter what color, the quality is actually the same, the component is the liquid flowing, and the B component is the curing agent. First handle the molded or copied products, take a certain amount of gel, and add 2- The curing agent of 3% can be used after mixing evenly, 2-Mold can be cured in 3 hours. It has no deformation, no shrinkage, high temperature resistance, and can be used repeatedly after mold molding. It provides rapid replication for products, and the shrinkage rate of products can reach 2‰. It is mainly used for prototype models and Small Batch replication products.

I. Less number of mold turns

too much silicone oil was added in the process of making the mold, silicone oil destroys the molecular weight of silica gel, so the mold will appear less and less durable. If you want to make a small product with a more complicated pattern, open the mold with a large hardness of silica gel, there will be a phenomenon of less mold turnover, because the silicone will be very brittle and easy to break. On the contrary, if you make large products and use silicone with small hardness to make molds, the result will also be unsatisfactory. Because the silicone is too soft, its tension and tear strength will be reduced, and the mold made will be deformed, so the number of mold turns will be reduced. The quality of the mold glue itself is very good, there is no good or bad silicone, only suitable and not suitable. We need to use silicone suitable for the hardness of the product to make the mold. This will not happen.

2. Burning phenomenon

Because of unsaturated resin and resin products after adding the curing agent of the peroxide, in case of resin reaction, a large amount of heat will be generated. The general curing time of the resin is 3 minutes, so it is necessary to demoulding as soon as possible after 3 minutes to prevent the silicone mold from burning.

3. There is no phenomenon in the dry table

mold silica gel belongs condensed silicone, it is cured by absorbing water in the air. In the process of making, the silica gel steamed the water dry, and did not transfer the appropriate amount of water, this phenomenon will occur. Solution: This phenomenon is not a product quality problem, but because there is no control of water and the storage period of silicone is improved, the shelf life will last for a long time, as long as silicone is used, add 0 in moderation. 05% of water can be solved by mixing evenly.

4. The tension difference phenomenon

because the customer is making the mold in the process, in order to reduce the viscosity of the silica gel, the silica gel is easy to operate and a large amount of silicone oil is added to the silica gel, which will make the silica gel very soft, resulting in non-tensile resistance, lower tear strength and worse tension, thus, the mold is not durable, the service life is short, and the number of mold turns is small.

The mold silicone itself will not be oily, and the oil is produced because compound silicone oil is added during the operation (Compound of silicone oil and white mineral oil) Because white oil is a petrochemical product, not a silicone oil.

5. The mold is not resistant to acid and alkali, aging resistance

In the process of making silicone molds, we recommend that customers not add any silicone oil, if necessary, the amount of silicone oil added should not exceed 5% ~ 10%. Because the addition of silicone oil will destroy the molecular weight of silica gel, the mold made will produce acid and alkali resistance and aging resistance.

six, there are traces, stripes, non-smooth and other phenomena on the surface of the mold

This phenomenon occurs because the product or model to be copied is not polished or polished. Because the model or product itself is not smooth or perfect enough, the product or model to be copied will not be beautiful and smooth enough if it is not polished or polished. Another situation is that when the mold release agent is played, the mold will not be smooth without uniform brushing.

Why do many enterprises choose the extension model?

Why do you choose extension dimensions multiple times? The old customer said this:' I believe that Tuowei is because the prototype of Tuowei is good in materials, without cutting corners, with good quality and excellent service. ' This is the customer's trust in Taowei. This trust is the obligation of Taowei to provide customers with satisfactory products and services, and it is also the driving force for us to do well. !

24-hour customer service hotline: If you are interested in or have questions about silicone re-molding, please click on the online customer service growth on the left side of the Contact us page is always more important than success. You can not make a deal in sales, but you must not grow in sales.

The user who browsed this article also browsed:

silica gel prototype model making process

ratio of silica gel prototype making materials

How to make a prototype model of silica gel

We are a performance driven culture that uses lost wax casting to ensure continuous improvement.
is a rubber prototyping rapid prototyping business provided by Shenzhen Tuowei Model Technologies Co., Ltd. which is a leading manufacturer in China. For more information, visit Tuowei Model.
Your co-workers, investors and clients have busy schedules, and it can be hard to get everyone in the same place at the same time for custom plastic injection molding. So, it is important to create a connection between company and clients.
If you are looking for best product, then here are some product like clear polycarbonate, abs prototype and rapid prototyping equipment in various styles which will surely meet your demand. Visit Tuowei Model to know more!