| 8620 Retaining Compound |
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| ChemTools Products | |||
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Available in the following sizes: 20ml, 50ml & 250ml CT-8620-20 - CT-8620-50 - CT-8620-250 ChemTools 8620 is a high viscosity; high strength anaerobic retaining compound for cylindrical fitting parts particularly where bond gaps can approach 0.25mm. High temperature resistance up to 200°C.
ChemTools 8620 retaining compound is a single component anaerobic adhesive, which develops high strength rapidly when confined in the absence of air between close fitting metal surfaces.
Applications:
Adhesive Properties: Composition: Urethane Methacrylate Color: Green Viscosity: 8,400 cps at 25°C Thixotropic Brookfield RVT Spindle This e-mail address is being protected from spambots. You need JavaScript enabled to view it Specific Gravity: 1.16 Maximum Diameter of Thread/Gap Filling: 0.25 mm Flash Point: >93°C Solvent Content: None Shelf Life: 1 year
Curing Properties:
Handling Cure Time: 10 minutes Functional Cure Time: 2 - 4 hours Full Cure Time: 24 hours Compressive Shear Strength: (ISO 10123) After 24 hours at 22°C Steel Pins & Collars > 17-19 N/mm2 >3,125 psi After 30 minutes at 22°C Steel Pins & Collars 13-15 N/mm2 1,960 psi Temperature Range -55 to 150°C
Physical Properties: Coefficient of Thermal Expansion: 80×10-6 ASTM D 696, K-1
Coefficient of Thermal Conductivity: 0.10 ASTM C 177, W/ (m·K) Chemical Resistance: Chemical Temperature % Initial Strength Retained 500 hours 1000 hours Acetone 22°C 95 90 Ethanol 22°C 100 100 Motor Oil 125°C 100 100 Petrol 22°C 100 100 Brake Fluid 22°C 100 100 Water/Glycol 87°C 85 80
Directions for use:
For Assembly • For best results, clean all surfaces (external and internal) with a cleaning solvent and allow solvent to evaporate. • If the material is an inactive metal or the cure speed is too slow, spray with Activator 8071 or 8049 and allow drying. • For Slip Fitted Assemblies, apply adhesive around the leading edge of the pin and the inside of the collar and use a rotating motion during assembly to ensure good coverage. • For Press Fitted Assemblies, apply adhesive thoroughly to both bond surfaces and assemble at high press on rates. • For Shrink Fitted Assemblies the adhesive should be coated onto the pin, the collar should then be heated to create sufficient clearance for free assembly. • Parts should not be disturbed until sufficient handling strength is achieved. For Disassembly • Apply localised heat to the assembly to approximately 250°C. Disassemble while hot.
Storage:
Anaerobic adhesives shall be ideally stored in a cool, dry place in unopened containers at a room temperature between 7°C to 28°C. Please do not return any unused material to its original container.
PRECAUTIONS: This product capable of producing adverse health effects ranging from minor skin irritation to serious systemic effects. None of these materials should be used, stored, or transported until the handling precautions and recommendations as stated in the Material Safety Data Sheets (MSDS) for this and all other products being used are understood by all persons who will work with the material. Warranty: All products purchased from or supplied by ChemTools are subject to terms and conditions set out in the contract. ChemTools warrants only that its product will meet those specifications designated as such herein or in other publications. All other information supplied by ChemTools is consider accurate but are furnished upon the express condition the customer shall make its own assessment to determine the product’s suitability for a particular purpose. ChemTools makes no other warranty, either express or implied, including those regarding such other information, the data upon which the same is based, or the results to be obtained from the use thereof; that any product shall be merchantable or fit for any particular purpose; or that the use of such other information or product will not infringe any patent.
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