PRODUCT DESCRIPTION

DEDT 3215 is a single component anaerobic threadlocking material, which is develops high strength. The product cures when confined in the absence of air between close fitting metal surfaces.

TYPICAL APPLICATIONS

* Prevents loosening and leakage of threaded fasteners.

* Cylinder liner studs.

* Air compressor fasteners.

* Refrigeration safety valves.

POLYMER PROPERTIES

Typical

Value        Range

Chemical Type                                                                 Dimethacrylate ester

Appearance                                                                   Blue liquid

Specific Gravity                                                               1.1

Viscosity (at 25°C) (mPa.s)                                               7000       5000 to 9000

Flash Point (TCC) °C                                              >93

CURE SPEED VS. SUBSTRATE

The rate of cure will depend on substrates involved.

Substrate                                                                   Fixture time/Full cure

Steel                                            30min/24hrs

Brass                                            40min/24hrs

Zn Dichromate                                    50min/24hrs

Stainless Steel                                     60min/24hrs

CURE SPEED VS. BOND GAP

The rate of cure will depend on the bondline gap. Thin bondlines result in high cure speeds, increasing the bond gap will decrease the rate of cure.

CURE SPEED VS. ACTIVATOR

Where cure speed is unacceptably long due to large gaps, applying activator to the surface will improve cure speed, But may also impair overall adhesive performance and therefore testing is recommended to confirm effect.

CURE SPEED VS. TEMPERATURE

The rate of cure will depend on the ambient temperature. High temperature tend to increase the speed.

TYPICAL PROPERTIES(CURE)

After 24hr at 22℃ on M10 steel nuts and bolts (N.m).

Typical

Value       Range

Breakaway Torque                                                             31         25~35

Prevailing Torque                                                              35         28~40

GENERAL INFORMATION

This product is not recommended for use in pure oxygen or rich systems and should not be selected as sealant for chlorine or other strong oxidizing materials.

Where aqueous washing systems are used to clean the surfaces before bonding. It is important to check for compatibility of the washing solution with the adhesive. In some case, these aqueous washes can affect the cure and performance of the adhesive.

This product may not be compatible with plastics, (particularly thermoplastic materials where stress cracking of plastic could result). Users are advised to confirm compatibility of the product with such substrates.

DISASSEMBLY AND CLEANUP PRODUCT

To aid in disassembly, DEDT anaerobic compounds can be weakened by heating to at least 260℃. Once disassembled ,cured adhesive can removed with DEDT Gasket Remover1790 by following instructions. A solvent wipe with an organic or petroleum solvent will remove uncured adhesive outside the joint.

PRODUCT STORAGE

Product should be stored in a cool, dry location in unopened containers at a temperature between c between 46℉ (8℃) to 82℉ (28℃) unless otherwise stated. To prevent contamination of unused product, do not return any material to its original container.

DISCLAIMER

The data contained within this Technical Data Sheet are furnished for information only and are believed to be reliable at the time of issue. We cannot assume responsibility for results obtained by others over whose methods we have no control. It is the responsibility of the customer to determine the products suitability for use. DEDT New materials Limited and its associated companies accept no liability arising out of the use of this information or the products described herein.