Crestabond® M1-200 pages
CRESTABOND M1-20
Methacrylate Structural Adhesive
Introduction
Crestabond M1-20 is a toughened, two component acrylic adhesive designed for bonding composites, thermoplastics
and metals. This new generation of structural methacrylate adhesive meets the bonding requirements of most assembly
operations, demonstrating excellent impact, peel, shear, compressive strength and fatigue resistance properties across
all bonded parts. Crestabond M1-20 is a primerless adhesive, requiring only minimal surface cleaning of the substrates
to be bonded and demonstrates high toughness in all assembled parts with a gap filling capability up to 25mm.
Features
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Benefits
Primerless metal application
Excellent retention of toughness
High strength and modulus
Non-sag
Fast setting and curing
Excellent adhesion to dissimilar substrates
Excellent environmental resistance
Ready-to-use two component adhesive
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Speeds assembly process
Excellent fatigue and impact resistance
Replaces mechanical fasteners
Application on vertical surfaces
Reduce labour
Characteristics of Crestabond M1-20
Characteristics
Working Time/Geltime
Typical Value
1
16 – 22 Minutes
Fixture Time
1 – 25 mm
Flash Point
10.0°C
Mixed Colour
1.
25 – 35 Minutes
Gap Filling
Available in Grey or Black
Working time measured with 10g mass of adhesive with 10:1 mix ratio by volume at 24°C.
Physical Data – Uncured
Physical Data – Cured
Property
Typical Value
Property
Typical Value
M1-20 Adhesive
Activator 1
Tensile Strength
16 – 19 MPa
Viscosity
100,000 – 140,000 cPs
80,000 – 120,000 cPs
Tensile Modulus
600 – 850 MPa
Specific Gravity
0.96 – 1.02
1.05 – 1.15
Tensile Elongation
70%
Mix Ratio (by volume)
10.0
1.0
Mix Ratio (by weight)
9.0
1.0
2
Colour
Stability at 20°C
2.
3.
Off White
3
Black
12 Months
Tested to ASTM D638.
12 Months
Viscosity measured using a Brookfield Viscometer at 24°C.
Stability defined from date of dispatch when left un-opened in the
original containers and out of direct sunlight.
Crestabond M1-20 – TDS
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