Product Details
Place of Origin: China
Brand Name: EXCEEDCHEM
Certification: ISO9001:2008
Model Number: 823
Payment & Shipping Terms
Minimum Order Quantity: 500KG
Price: FOB Shanghai usd 12.5/kg
Packaging Details: 3.5kg/drum; 18kg/drum
Delivery Time: two weeks
Payment Terms: L/C, T/T
Supply Ability: 1000mt/month
Product Name: |
823 Rubber To Metal Adhesive Alternative For Chemlok 220 |
Appearance: |
Black Liquid |
Function: |
Cover-coat |
Suitable For: |
NR, SBR, CR, IR, BR |
Substrate: |
Metal |
Cure Type: |
Heat Cure |
Alternative: |
Chemlok 220, Chemosil 225 |
Application: |
Auto Parts |
Product Name: |
823 Rubber To Metal Adhesive Alternative For Chemlok 220 |
Appearance: |
Black Liquid |
Function: |
Cover-coat |
Suitable For: |
NR, SBR, CR, IR, BR |
Substrate: |
Metal |
Cure Type: |
Heat Cure |
Alternative: |
Chemlok 220, Chemosil 225 |
Application: |
Auto Parts |
823 Rubber to Metal Adhesive Alternative For Chemlok 220
Application
823 Rubber to Metal Adhesive Alternative for Chemlok 220 serves as a secondary adhesive specifically intended for application over 815 primer. This adhesive system is designed to bond uncured elastomers to metals and other rigid substrates during the vulcanization process of the elastomer. It is formulated without heavy metals and consists of a blend of polymers, organic compounds, and mineral fillers dissolved or dispersed in an organic solvent system.The 815 primer enhances environmental resistance for the bonded assembly and promotes strong adhesion to the substrate.
Characteristics
1. Versatile Application: When used with 815 primer, it effectively bonds a diverse range of rubbers including natural rubber, SBR, neoprene, polyisoprene, and polybutadiene to various metals and other rigid substrates.
2. Environmentally Friendly: Formulated without the use of heavy metals.
3. Superior Performance: Provides a smooth, continuous film appearance for excellent results.
Typical Properties
Color | Black Liquid |
Viscosity @25℃, 77 ℉(Brookfield LVT Spindle 2, 30 rpm ) | 70-300 cps |
Density | 975.0-1000.0kg/m3 |
Solid content by weight | 23-27% |
Flash Point(seta) | 25-28℃ |
Solvent | Xylene |
Shelf life | 12 months in unopened containers (21-27°C (70-80°F)) |
Applying 823 Rubber to Metal Adhesive Alternative for Chemlok 220
Surface Preparation Guidelines:
Initial Cleaning:
Chemical Cleaning:
Mechanical Cleaning:
For further detailed information on surface preparation of specific substrates, refer to our adhesive application guide. Handle clean metal surfaces with clean gloves to avoid contamination with skin oils.
For most consistent bonding results, apply the 823 Rubber to Metal Adhesive to 815 primed stainless steel, aluminum, brass or other nonferrous substrates. Allow primer to thoroughly dry before applying 823 Rubber to Metal Adhesive. For further details on the use of 815 primer, refer to the 815 primer data sheet.
4. Mixing: Thoroughly stir 823 Rubber to Metal Adhesive before applying adhesive over primer. Agitate sufficiently during use to keep dispersed solids uniformly suspended.
--Depending on container, use the following recommended mixing method and duration:
--1/2 pint Hand stir, paint shaker 5-10 minutes
--1-5 gallon Hand stir and air powered mixer 15-60 minutes
--55 gallon Hand crank and air motor agitator 8 hours-new drum; continuous-opened drum
5. Applying: Apply 823 Rubber to Metal Adhesive by spray, dip, brush or roll coat methods. 823 Rubber to Metal Adhesive is normally used full strength for brush, roll coat and dip application. For spray application, dilute adhesive with xylene or toluene to a Zahn Cup #2 viscosity of 25-28 seconds. Dilution of 25-50% is typical.
Optimal film thickness for a particular bonded part is dependent on the rubber formulation and the level of adhesion required. Regardless of application method, use the following recommended dry film thicknesses:
815: 5.1-10.5 micron (0.2-0.4 mil)
823: 12.7-25.4 micron (0.5-1.0 mil)
6. Drying/Curing: Allow applied adhesive to air-dry for 30-60 minutes at 15-32°C (60-90°F). If humidity is high, drying times may take longer. Drying time can be shortened by either preheating the metal inserts or oven drying after application. Metal parts may be preheated to a maximum of 60°C (140°F) prior to adhesive application. If dry spray or cobwebbing occurs, lower the metal preheat temperature. For coated parts, moderate drying temperatures should be used, but temperatures as high as 93°C (200°F) can be used for short periods of time. Maximum air flow at minimum temperatures will give the best results.
Dried films of 823 Rubber to Metal Adhesive are non-tacky; therefore, coated parts can be piled into tote pans for subsequent processing. Wear clean gloves when handling cemented parts and cover the tote pans to prevent contamination by dirt, grease, oil, etc. Limit layover times to less than 30 days.
Heat Vulcanization Adhesive 823 cures during the rubber vulcanization process.
7. Cleanup–Clean liquid spills with rags. Remove dried material from surfaces with spark-proof equipment and dilution solvents.
Packing
3.5kg/drum; 18kg/drum