100 - 40,000 kilogram
40,001 - 999,999 kilogram
group nameRTV-2 silicone rubber for molds making
Min Order100 kilogram
brand nameHong Ye silicone rubber
modelHY-928 (equal to Wacker 623)
payment methodT/T, L/C, Westem Union
update timeTue, 05 Nov 2013 12:35:06 GMT
Appearance Liquid
Purity 100%
Color white/ off-white/ blue/ red/ yellow
Catalyst 4% for free
Application make silicone pad
Package vacuumed packing
Shelf life 12 months
MOQ 100KGS
Sample Free
Certificates SGS, RoHS, MSDS, FDA, ISO, REACH, UL
Min Order100 kilogram
Pad Printing Silicone Rubber Equal to Wacker 623 ---- HY-928
Usage of Pad Printing Silicone Rubber equal to Wacker 623 ---- HY-928
Pad printing silicon rubber is mainly applicable to the printing of irregular patterns on plastics toys, electroplating products, electronic toys, trademarks, artwork gifts, and stationery, etc.
Description of Pad Printing Silicone Rubber equal to Wacker 623 ---- HY-928
The silicon pad is a carrier which transfers the patterns from the steel plate onto the products’ surface. It has the advantage of good printing effects, good quality, good resilience, and without any impurity.
Datasheet of Pad Printing Silicone Rubber equal to Wacker 623 ---- HY-928
Model | Color | Mixing ratio (%) | Pot life (mins) | Demould time (hrs) | Hardness(A0) | Tensile-stength (N/m2) | Tear-strength (N/mm) | Viscosity (cps) | Elongation (%) |
HY-928 | red | 9:1 | 30 | 4±1 | 30 | 5.5 | 27 | 17000-20000 | 500 |
Wacker623 | red | 9:1 | 30 | 5 | 30 | 7.5 | 30 | 15000 | 700 |
Operation Instruction for Pad Printing Silicone Rubber equal to Wacker 623 ---- HY-928
1. Firstly, clean the mold with detergent, and dry it by a piece of cloth or an air gun and then coat the mold with a layer of release agent.
2. Generally, the ratio of pad printing silicon rubber and the silicon oil depends on the size of pattern which customer needs to print. The larger the pattern is, the softer the printing pad should be, and more silicon oil needs to add. Contrarily, if a silicon pad with high hardness needed, silicon oil should be added less or none. General hardness of the printing pad is 15A°~-25 A°. If too much silicon oil added in the silicon rubber, the printing pad will be too soft, and this will limit the printing times. For silicon oil will destroy the molecular chain of the silicon rubber, no matter how supreme quality the silicon rubber is. And therefore, the printing pad will be abrasion intolerant and solvent intolerant and easy ageing.
3. General mixing proportion is as follows: add 30g silicon oil into 100g silicon then hardness of 20A° printing pad we get, which is suitable for the pad printing for alloy car and other products with small patterns and contact areas. If a big contact surface or a soft silicon pad needed, the mixing proportion between the silicon and the silicon oil can be 100:30-100:50. But please note that the more silicone oil added, the softer the silicon pad will be, which will also reduce printing times, abrasion resistance and solvent resistance. Therefore, cost increase and material waste will occur.
4. Relation between the amount of the curing agent added and the chemical reaction of the silicon is as follows: mix 100g silicon and 50g silicon oil sufficiently and evenly, then add the curing agent which is 2%-3% of the total weight of the silicon and the silicon oil, keep stirring for 2-3 minutes, and then deair to remove the air bubbles. It is better to finish deair within 10 minutes. For if it takes too long, it may cause fast curing and affect the quality of the printing pad.
Any questions for Pad Printing Silicone Rubber, pls feel free to contact Taylor:
Tel: + 86-755-89948006
Mob: +86-18938867522
Skype: taylordl828
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