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How should plastic and rubber be bonded

26 Nov 2019

Rubber is the high elastic polymer material with reversible deformation, elastic at room temperature, can produce large deformation under the action of a small external force, can restore the original state after removing the external force, so plastic silicone rubber adhesive should be how to bond, below and small make up to understand in detail!

plastic silicone rubber adhesive

Rubber is the high elastic polymer material with reversible deformation, elastic at room temperature, can produce large deformation under the action of a small external force, can restore the original state after removing the external force, so plastic and rubber adhesive should be how to bond, below and small make up to understand in detail!

Step 1 treatment of rubber and plastic surfaces to be bonded:

Use clean dishcloth to glue the smeary of rubber and plastic surface, dirt to wait wipe clean, reoccupy acetone or the cleaner such as trichloroethylene is wiped, in order to clean next surface.

Polish not too rough, wipe with solvent again, and dry.

The second step is dispensing on the surface of the plastic and rubber to be bonded:

Unscrew before cover, can cover on needle or PE dropper hind use, can control glue discharge, assure the effect that use, besmear glue amount should be appropriate, had better less as far as possible, glue layer is thinner intensity is taller.

plastic silicone rubber adhesive

For small parts assembly, embedding, process fixation, crack repair, pinhole plugging can be used to apply adhesive penetration, that is, the location of the adhesive, and then drop glue, capillary action suction bonding surface.

If the shape and material of the object are the same, any side can be coated with glue.

If the shape and material are not the same, the adhesive on the bonding face, or a smaller area, or the slow curing speed of the surface, or difficult to penetrate the surface.

Step 3: glue the plastic and rubber surfaces to be bonded:

Aim at the position of bonding, no more dislocation, otherwise affect the bonding strength, pressure to keep the adhesive close contact, pressure time is generally 2-5 minutes.

Step 4 wait for the adhesive to solidify:

Curing speed is related to temperature and humidity.

The temperature and humidity of the bonding site are high, the curing speed is fast, and the bonding strength decreases.

The most suitable temperature is 20-30 , the relative humidity is 50%~60%, not more than 70%, otherwise it is easy to produce albinism, the bonding surface is also required to be dry, no moisture, sweat, and so on, it is recommended to wear disposable plastic gloves operation.

High strength 30 minutes after bonding, but to reach the maximum strength will take 24 hours.

In case of whiteness, it can be used together with treatment agent.

KANGLIBANG is to creat solution for your problem with bonding silicone, welcome customer inquiry to us.

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H Building ,Xinwei The 3rd Industrial Park,Dalang Street,Longhua New District , Shenzhen City ,Guangdong Province ,China

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