Retaining Compounds for Large Clearance Sealing (SA4660)
SA4660, is one-component, high strength, high viscosity anaerobic retaining sealant for the bonding of cylindrical fitting parts, particularly where gaps approach 0.50mm, It cures when confined between two close fitting metal surfaces in the absence of air.
Usage
Used for restoring correct fits on worn shafts, spun bearings and damaged keyways.
Operation
1. For the better results, clean all the surfaces(external and internal) with our A6755 cleaning
And allow to dry and oil.
2. 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 assemble 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.
3. Assembled parts should not be disturbed until sufficient handing strength is achieved
Package
50ml / Tube, 250ml / Tube
Storage
Keep in cool and dry location in unopen containers at 8-28º C
Shelf life: 24 months
|
Properties before curing |
Testing Term |
testing standard |
Unit |
Typical Value |
Range |
|
Appearance |
By Eye |
--- |
Metallic graypaste |
|
|
Basis Material |
|
|
Urethane Methacrylate |
|
|
Viscosity |
GB/T 2794-1995 |
Brookfield-HBT,,25ºC,Spindle TB, speed 0.50 rpm (mPa@s)(cP) |
250000/15000000cp |
1000000 to 2000000LMS
|
|
Brookfield-HBT,25ºC,Spindle TB, speed 5.0 rpm (mPa@s)(cP) |
|
150000 to 350000 LMS |
|
Density |
GB/T13354-1992 |
25ºC,g/cm3 |
1..08 |
|
|
Flash point |
SH/T0733-2004 |
ºC |
|
> 100 °C (> 212 °F) |
|
Max.Gap fill |
|
mm |
0.5 |
|
|
Fixture time |
|
min |
20 |
|
|
Properties after curing |
Full curing time |
RTV |
h |
24 |
|
|
Shear Strength |
GB/T18747.2-2002 |
MPa |
23 |
|
|
Working Temperature |
|
ºC |
|
-55°C +150°C |
|
Chemical/Solvent Resistance |
Aged under conditions indicated and tested @ 22ºC |
|
Solvent |
Temperature |
% of Initial Strength |
|
|
ºC |
100h |
500h |
1000h |
|
Motor Oil |
125 |
100 |
100 |
100 |
|
unleaded Gasoline |
22 |
100 |
100 |
100 |
Brake fluid
|
22 |
80 |
75 |
75 |
|
Ethanol |
22 |
95 |
95 |
95 |
|
acetone |
22 |
80 |
80 |
80 |
|
Water/Glycol(50%/50%) |
87 |
100 |
90 |
80 |
Founded in DEC. 2003, SEPUNA has been engaged in researching, manufacturing and marketing automobile sealant and adhesive for 9 years.
Since the foundation, SEPUNA Chemical has been focusing on adhesive's researching and application. Then in 2005, We acquired PUNADE technology which is from Switzerland.
Within 9 years, SEPUNA mainly develops Silicone, Polyurethane and Epoxy resin adhesives. And in the future, we will enlarge our line to Unsaturated, Natural and Acrylic Resin adhesive.
After 9 years' improvement, by the keep researching and innovation, SEPUNA is already a mature adhesive supplier with the core competitiveness.
