PRODUCT DESCRIPTION

DEDT 835 a high viscosity low-odour, low-bloom cyanoacrylate adhesive. The product has a rapid cure rate and is

suitable for porous substrates or where gap fill may be required.

TYPICAL PROPERTIES

Ester Base Alkoxy-ethyl cyanoacrylate

Appearance Clear, colourless

Flashpoint >81°C

Density 1.10

Shelf Life 12 months, unopened

Viscosity (Brookfield) @ 25°C 850-1250cPs

(Spindle 1, 20rpm)

POLYMER PROPERTIES

Appearance Clear, colourless

Softening Point c. 100°C

Refractive Index, nD20 1,45

Full Cure Time 24 hours

Solubility DMF, acetonitrile, acetone

CURED SPEED VS. SUBSTRATE

Balsa / Balsa 15- 20 seconds

Rubber / Rubber <7 seconds

Nitrile / Nitrile <7 seconds

Neoprene / Neoprene <7 seconds

EPDM / EPDM <7 seconds

Steel / Steel 20-40 seconds

PVC / PVC 20-40 seconds

Polycarbonate / Polycarbonate 20-50 seconds

CURED SPEED VS. 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.

CURED SPEED VS. ACTIVATOR

Where cure speed is unacceptably long due to large gaps, applying activator to the surface will improve cure speed,

However, this can reduce ultimate strength of the bond and therefore testing is recommended to confirm effect.

SHEAR STRENGTH

Grit Blasted Steel >14 N/mm²

Etched Aluminium >10 N/mm²

Nitrile Rubber >4 N/mm²

Polycarbonate >3 N/mm²

Technical Data Sheet

835

ABS >6N/mm²

PVC >2N/mm²

DIRECTIONS FOR USE

For best results the surface must be clean and free from oil ,grease, rust and other contamination. Best results with

DEDT adhesive are obtained by using the minimum amount of adhesive needed to fill the gap between the two

mating surfaces. Apply firm pressure to mated surfaces until adhesive sets.

PRODUCT STORAGE

Store product in the unopened container in a dry location. Optimal storage:2℃ to 8℃. Keep container tightly capped.

If stored at low temperature, product must be allowed to return to room temperature before use, This normally takes 8

to12 hours.

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 Limited and its

associated companies accept no liability arising out of the use of this information or the products described herein.