custom toys

rubber dog toy

by:Zhierde     2020-12-29

rubber dog toy is a kind of synthetic rubber, belonging to organic rubber, specially used for making dog toys. rubber dog toy is currently the best high temperature and severe cold resistant silicone rubber. Generally, it can maintain good elasticity at -60~250℃, and has high stability to thermal oxidation and ozone. The rubber dog toy is non-toxic and non-toxic. It is harmless to children's body, and has high insulation and high chemical inertness. It is an ideal material for making dog toys. rubber dog toy is also known as: dog toy silicone rubber, rubber dog toy, dog toy silicone rubber, dog toy silicone rubber, dog toy organic rubber.

The coefficient of thermal expansion and thermal conductivity are 2-2.5 times and 2-3 times that of organic rubber, respectively. Silicone rubber solubility parameter δ=7.3-7.6, soluble in benzene, toluene and xylene.

rubber dog toy features

①It has good operability.

②Low viscosity, good fluidity and easy operation.

③The shrinkage rate is small, generally less than two thousandths.

④ Good tensile strength.

⑤Not easy to deform.

⑥The hardness of silicone rubber should be suitable for product use.

⑦High temperature resistance, many times of mold turning, the longer the service life, the better, acid and alkali resistance and aging resistance.

⑧Non-toxic, harmless, and chemically inert.

①It has good operability.

②Low viscosity, good fluidity and easy operation.

③The shrinkage rate is small, generally less than two thousandths.

④ Good tensile strength.

⑤Not easy to deform.

⑥The hardness of silicone rubber should be suitable for product use.

⑦High temperature resistance, many times of mold turning, the longer the service life, the better, acid and alkali resistance and aging resistance.

⑧Non-toxic, harmless, and chemically inert.

How to use rubber dog toy


1. RTV-2 is a flowable liquid silicone rubber before use. It is packed in two components: A and B: component A is rubber, and component B is compound vulcanizing agent. When mixing the two components in a certain ratio, they should be fully stirred, otherwise there will be vulcanized lumps and unvulcanized sticky rubber in the mixture. This phenomenon of uneven vulcanization will affect the dog. The service life of toy rubber even caused all RTV-2 to be scrapped!

2. Vacuum for foaming, and more air will be mixed into the rubber during mixing. Therefore, after completing the first step, the mixed rubber should be vacuumed for foaming. Normally, the foaming is about 3%. -5 minutes is appropriate. If the time is too long, the viscosity of the rubber compound will increase due to vulcanization, which will result in the inability to be painted or poured, resulting in scrap.

3. Brush or fill the mold, be sure to clean the surface of the original to be copied before operation, and apply a release agent (such as petroleum jelly) or release agent. Then, evenly brush or pour the rubber material after vacuum exhausting into the original model to be copied. For example, when using the brushing method, after about 30 minutes, stick a layer of gauze or glass fiber cloth on the model to increase the strength of the rubber, and then apply a layer of rubber material, and then stick the gauze or glass fiber cloth, and repeat the procedure twice. Times. The mold made by this method has a long service life and a large number of mold turning times, which can save money and cost.

4. The production of the outer mold: The general method used is to use rubber or cardboard to surround the mold and fix it with glue. For example, when using plaster, just fill the outer frame of the mold; if the resin coating method is used, then Apply a layer of resin to stick a layer of glass fiber cloth, and repeat the operation three times to make an outer mold.

5. Pouring mold or pouring mold: Use this method for models with smooth surfaces or simple shapes. When operating, first use rubber, cardboard or glass to surround the original or model to be copied, and then pour the evacuated foam directly into the original or model to be copied. After the rubber dog toy is vulcanized, the idea Take out the original or model, and the rubber mold is made. (Infusion molds are generally made of rubber with lower hardness, so that it is easier to demold and will not damage the objects in the rubber mold) Packaging, storage and transportation

Frequently Asked Questions about rubber dog toy

1. The rubber dog toy will burn mold?

Because unsaturated resins and resin products are added with peroxide curing agents, they will generate a lot of heat when they react with the resin. Generally, the curing time of the resin is 3 minutes. Therefore, the mold must be demolded as soon as possible after 3 minutes to prevent the rubber mold from failing. Produce burn-in phenomenon.

2. The rubber dog toy will not dry on the surface and inside?

rubber dog toy is a kind of condensed rubber. It is cured by absorbing moisture in the air. In the process of making rubber, the water is evaporated to dryness without adding proper amount of water. phenomenon.

Solution: This phenomenon is not a product quality problem, but because there is no water control, the rubber storage period is increased, and the shelf life is long. When the rubber is used, the appropriate amount of 0.05% water is added, and the mixing is even. Some situations can be resolved.

3. Can rubber dog toy exhibit poor tension?

In order to reduce the viscosity of the rubber and make the rubber easy to handle, the customer added a large amount of silicone oil to the rubber during the process of making the mold. This will make the rubber very soft, resulting in tensile resistance, and reduced tear strength. The phenomenon of deterioration of the tensile force, which causes the mold to be not durable, the service life is short, and the number of mold reversals is small.

4. The mold is not resistant to acid and alkali, and not resistant to aging?

In the process of making rubber molds, we recommend that customers do not add any silicone oil. If necessary, the amount of silicone oil should not exceed 5%~10%.

Because the addition of too much silicone oil will destroy the molecular weight of the rubber, the resulting mold will not be resistant to acids and alkalis and aging.
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