United Bonding /Cushion Gum
In the precure process of retreading it is used to achieve the following main purposes.
1. When applied on the entire circumference of the buffed tyre,it fills up the voids in buffed texture
2. It brings about better chemical and mechanical bonds between the cured tread and the tyre casing.
United Bonding Gum is the result of extensive research and is perfected to meet all the needs of cold/ precured process of retreading.
Usually Tread seperation in precured process of retreading occurs due to..
1. Unfit casing
2. Incorrect buffed texture
3. Unrepaired surface injuries and nail holes
4. Improper application of vulcanising cement
5. Wet coated cement
6. Unclean cemented surface
7. Entrapped air between tread and casing
8. Insufficient curing temperature, pressure and time
9. Leaky envelopes
10.Cushion gum/Bonding Gum failures
Cushion gum/Bonding Gum fails if it lacks in any of the following:-
1. Adequate processing safety
2. Sufficient green strength and green tack
3. Optimum curing characteristics
4. Good physical properties matching those of the precured tread
5. Capability to provide strong chemical and mechanical bonds.
The key to a very successful cold process retreading, United Bonding Gum provides
1. Excellent processing safety and processing characteristics
2. Outstanding green strength and green track
3. Best suited cure characteristics
4. Superior physical properties corresponding with those of the precured Tread
5. Unbreakable chemical and mechanical bonds
United Bonding Gum is available for various curing ranges [99 Degree C, 125 Degree C, 150 Degree C]
UNITED BONDING GUM/CUSHION GUM
Standard dimensions
1. 2.40MM * 1.2MM
2. 2.20MM * 1.2MM
United Bonding Gum could also be supplied as per exact dimensional requirements of the retreader.
Storage recommendations for United Bonding Gum
1. Keep Bonding Gum in cold dry place where temperature does not exceed 25 degree C or 77 degree F
2. It is therefore essential to keep Bonding Gum in an air conditioned room
3. Bonding Gum shall be consumed within 60 days from the date of manufacture.
4. Over aged Bonding Gum over 60 days shall be tested to decide the usage. For this purpose, send sample to the factory through courier service for speedy delivery
CAUTION
United Rubber Pvt Ltd shall not stand guarantee for Bonding Gum, stored or used against conditions stipulated as above.
Mode of packing of United Bonding Gum
United Bonding Gum is available as 5 kgs rolls in 20 kgs packings.
