Product_635.pdf

Product Description Sheet
1001 Trout Brook Crossing
Rocky Hill, CT 06067-3910
Product 635
Telephone: (860) 571-5100
FAX: (860) 571-5465
Industrial Products, December 2000
PRODUCT DESCRIPTION
LOCTITE® Product 635 is a high strength, high viscosity, singlecomponent anaerobic retaining adhesive for cylindrical joints.
The product cures when confined in the absence of air between TYPICAL APPLICATIONS
Used to bond cylindrical fitting parts. Typical applications
include rotor to shafts in fractional and subfractional horsepowermotors. Locks bearings in place, preventing spin out. Locks bushings and sleeves in housings on shafts. Augments press % of Full Strength on Steel
Cure Time, Hours
PROPERTIES OF UNCURED MATERIAL
Cure speed vs. primer
Where cure speed is unacceptably long, or large gaps are present, applying activator to the surface will improve cure speed. The graph below shows shear strength developed with time using Primer N and T on zinc dichromated steel pins and collars and tested according to ISO-10123.
TYPICAL CURING PERFORMANCE
Cure speed vs. substrate
The rate of cure will depend on substrate used. The graphbelow shows shear strength developed with time on steel pins and collars compared to different materials and tested according % of Full Strength on Steel
Cure Time, Hours
TYPICAL PROPERTIES OF CURED MATERIAL
Physical Properties
Coefficient of thermal expansion, ASTM D696, K-1 Coefficient of thermal conductivity, ASTM C177, W.m-1 K-1 % of Full Strength on Steel
Cure Time, Hours
PERFORMANCE OF CURED MATERIAL
(Heat Cured for I hr at 93°C, tested at 22°C on steel)
Cure speed vs. temperature
The rate of cure will depend on the ambient temperature. The graph below shows shear strength developed with time on steel pins and collars at different temperatures and tested according NOT FOR PRODUCT SPECIFICATIONS
THE TECHNICAL DATA CONTAINED HEREIN ARE INTENDED AS REFERENCE ONLY.
PLEASE CONTACT LOCTITE CORPORATION QUALITY DEPARTMENT FOR ASSISTANCE AND RECOMMENDATIONS ON SPECIFICATIONS FOR THIS PRODUCT.
ROCKY HILL, CT FAX: +1 (860)-571-5473 DUBLIN, IRELAND FAX: +353-(1)-451 - 9959
PDS Product 635, December 2000
TYPICAL ENVIRONMENTAL RESISTANCE
Where aqueous washing systems are used to clean thesurfaces before bonding, it is important to check for compatibility of the washing solution with the adhesive. In some cases these aqueous washes can affect the cure and performance of the This product is not normally recommended for use on plastics Hot Strength
(particularly thermoplastic materials where stress cracking of the plastic could result). It is recommended to confirm thecompatibility of the product with such substrates.
Directions for use
For best performance surfaces should be clean and free ofgrease. Ensure joint is completely filled with adhesive. For slip fitted assemblies this is achieved by applying adhesive aroundthe pin and the leading edge of the collar and using a rotating motion during assembly to ensure good coverage. For pressfitted assemblies adhesive should be applied thoroughly to both % RT Strength
bond surfaces and assembled at high press on rates. For shrinkfitted assemblies the adhesive should be coated onto the pin, the collar should then be heated to create sufficient clearance Temperature, °C
for free assembly. Parts should not be disturbed until sufficienthandling strength is achieved. This grade will developtemperature resistance after exposure to a heat cure of one Heat Aging
hour at 180°C or longer times at temperatures above 120°C in Aged at temperature indicated and tested at 22°C.
service. For more detailed information on using retainingadhesives contact your local technical service center.
Products shall be ideally stored in a cool, dry location in unopened containers at a temperature between 8° to 28°C(46° to 82°F) unless otherwise labeled. To prevent contamination of unused product, do not return any material to its original container. For specific shelf-life information, contactyour local Technical Service Center.
Data Ranges
The data contained herein may be reported as a typical valueand/or range (based on the mean value ±2 standard deviations).
Values are based on actual test data and are verified on a % Initial Strength Measured at RT
Chemical / Solvent Resistance
The data contained herein are furnished for information only and Aged under conditions indicated and tested at 22°C.
are believed to be reliable. We cannot assume responsibility forthe results obtained by others over whose methods we have no control. It is the user's responsibility to determine suitability forthe user's purpose of any production methods mentioned herein and to adopt such precautions as may be advisable for the protection of property and of persons against any hazards that may be involved in the handling and use thereof. In light of the foregoing, Loctite Corporation specifically disclaims all
warranties expressed or implied, including warranties of
merchantability or fitness for a particular purpose, arising
from sale or use of Loctite Corporation’s products. Loctite
GENERAL INFORMATION
Corporation specifically disclaims any liability for
This product is not recommended for use in pure oxygen
consequential or incidental damages of any kind, including
and/or oxygen rich systems and should not be selected as
lost profits. The discussion herein of various processes or
a sealant for chlorine or other strong oxidizing materials.
compositions is not to be interpreted as representation that they For safe handling information on this product, consult the
are free from domination of patents owned by others or as alicense under any Loctite Corporation patents that may cover Material Safety Data Sheet, (MSDS).
such processes or compositions. We recommend that eachprospective user test his proposed application before repetitiveuse, using this data as a guide. This product may be coveredby one or more United States or foreign patents or patentapplications.
Loctite is a Trademark of Loctite Corporation U.S.A.

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