SM20/1kg Methacrylate Structural Adhesive (1 to1 Mix Ratio)/ 1.0 kg

SM20 Methacrylate Structural Adhesive

 

SM20A:             0,5 kg     Bucket

SM20B:             0,5 kg      Bucket

SM20 is a 1 to 1 meter – mix methacrylate based structural adhesive formulated to bond almost all engineered thermoplastics, thermosets, composites and metal structural elements together, in any combination. It has excellent adhesion to as – received metal surfaces including aluminium, stainless steel and plated steels and forms tough, high strength bonds without surface preparation, primers, or chemical wipes.

It features a medium cure time for assembly flexibility to allow for positioning and multiple operations, but provides for faster fixture. P20 has outstanding durability and environmental resistance to many common industrial solvents, fuels, lubricants and environmental conditions.

This product is formulated as non – sag, and is easy to dispense through static mixer  tubes and cartridges. It is also easy to accurately weigh the two parts, in a 1 to 1 ratio, and mixed with a spatula.

We recommend abrading metal surfaces.

Process and Performance Benefits

UNCURED PROPERTIES

Part A               Part B

Viscosity (cps)          50000                 50000

Density (g/cc)             0,965                  0,965

Colour                         Off White         Amber

Mix ratio (weight & volume)  1 to 1

 

CURING PROPERTIES

Mixed Viscosity (cps)    90000

Mixed Density                 0,97  g/ cc

Working Time              10 to 18 minutes

Fixture Time                 30 – 35 minutes

Full Cure Time             24 Hours

CURED PROPERTIES

Colour                            Amber

Hardness                       78 D

Elongation        10 to 18% estimated

Operating Temperature   – 40 C   to 120 C

Coverage        1 kg covers 0,21 m2 @ 0,25 mm thickness

CURED ADHESIVE PROPERTIES

Tensile Strength :     26,5 Mpa

Gap filling :  10 mm

Impact Resistance:  960 J/ m

SUBSTRATE SHEAR STRENGTH

Polyester  GRP / GRP             Substrate Failure

ABS / ABS                                 Substrate Failure

S. Steel / S. Steel                      22 Mpa

Aluminium / Aluminium       22 Mpa

Aluminium /  ABS                   Substrate Failure

Gel Coat / Gel Coat                 Substrate Failure

Polyester GRP /  Gel Coat     Substrate  Failure

CLEAVAGE PEEL STRENGTH (ASTM D 3807)

S. Steel / S. Steel                   20 PLI

Chemical Resistance ASTM D 1002 (cured for 7 days @ 25 C)

Immersion 30 days  (Aluminium / Aluminium)

Petrol                       22 Mpa

Xylene                     22 Mpa

Water @ 23 C        22 Mpa

Water @ 90 C        21 Mpa

SHELF LIFE:  Refer to expiry date at 25C. Do not freeze.

Store at 8 C for  longer shelf life