Send Message
Qingdao Exceed Fine Chemicals Co.,Ltd
products
products
Home > products > Rubber To Metal Bonding Adhesive > 823 Rubber to Metal Adhesive Alternative For Chemlok 220

823 Rubber to Metal Adhesive Alternative For Chemlok 220

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

Get Best Price
Highlight:

Metal To Rubber Bonding Adhesive

,

Rubber To Metal Adhesive

,

Glue Rubber To Metal

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

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:

  • Thorough cleaning: Ensure metal surfaces are meticulously clean before primer application.
  • Remove contaminants: Eliminate protective oils, cutting oils, and greases using solvent degreasing or alkaline cleaning methods.
  • Address corrosion: Remove rust, scale, or oxide coatings with appropriate chemical or mechanical cleaning techniques.

Chemical Cleaning:

  • Automated applications: Chemical treatments are ideal for automated metal treatment and adhesive application lines.
  • Sensitive surfaces: Preferred for metal parts susceptible to distortion from blast cleaning or where precise tolerances are critical.
  • Common treatments: Steel often undergoes phosphatizing, while aluminum typically receives conversion coatings.

Mechanical Cleaning:

  • Grit blasting: A popular mechanical cleaning method.
  • Alternative methods: Machining, grinding, or wire brushing may also be used.
  • Abrasive selection: Steel grit is recommended for blast cleaning steel, cast iron, and other ferrous metals. For stainless steel, aluminum, brass, zinc, and other nonferrous metals, use aluminum oxide, sand, or nonferrous grit.

 

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

 

823 Rubber to Metal Adhesive Alternative For Chemlok 220 0