ITW Plexus® MA830 Methacrylate Adhesive

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ITW Plexus® MA830 Methacrylate Adhesive
Categories:	Polymer; Adhesive; Thermoset; Methacrylate; Methacrylate Adhesive
Material Notes:	Plexus® MA830 is a two-part methacrylate adhesive designed for structural bonding of metals without primers. In addition, MA830 does a superb job of bonding thermoplastic and composite assemblies with little or no surface preparation. Combined at a 10:1 ratio, MA830 has a working time of 4 to 6 minutes and achieves approximately 75% of ultimate strength in 15 to 25 minutes at 74°F (23°C). This product provides a unique combination of high strength, excellent fatigue endurance, outstanding impact resistance, and superior toughness. Plexus MA830 is supplied in a ready-to-use to be dispensed as a non-sagging gel. Excellentl resistance to: ? Hydrocarbons ? Acids and Bases (pH 3-10) ? Salt Solutions. Susceptible to: ? Polar Solvents ? Strong Acids and Bases. Recommended for: ? ABS ? Acrylics ? Aluminum ? FRP ? Gel coats ? PVC ? Polyesters (including DCPD modified) ? Steel (Exterior applications require the use of coatings or primers that inhibit oxidation of the steel.) ? Styrenics ? Urethanes (general) ? Vinyl Esters. Adhesive color: off white, uncured-room temperature. Activator color: gray or gray GB, uncured-room temperature. Information provided by ITW Performance Polymers.
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Physical Properties	Original Value	Comments

Density	8.06 lb/gal	adhesive. Uncured.
	8.17 lb/gal	Cured
	9.10 lb/gal	Activator. Uncured.
	9.25 lb/gal	Activator. Uncured.
Volatile Organic Compounds (VOC) Content	<= 10 g/l	During cure
Viscosity	35000 - 80000 cP @Temperature 22.2 °C	Activator
	80000 - 120000 cP @Temperature 22.2 °C	Adhesive

Mechanical Properties	Original Value	Comments
Hardness, Shore D	75	cured-room temperature.; ASTM D2240
Tensile Strength	3200 - 3800 psi	ASTM D638
Elongation at Break	30 - 60 %	ASTM D638
Tensile Modulus	70000 - 100000 psi	ASTM D638
Adhesive Bond Strength	2000 - 2800 psi	Lap Shear Cohesive Strength; ASTM D1002
Tensile Impact	>= 15.0 ft-lb/in @Temperature -40.0 °C	ASTM D950
	>= 20.0 ft-lb/in @Temperature 22.2 °C	ASTM D950
Peel Strength	30.0 - 40.0 pli	ASTM D1876

Thermal Properties	Original Value	Comments
Maximum Service Temperature, Air	180 °F
Minimum Service Temperature, Air	-40.0 °F
Flash Point	51.0 °F

Processing Properties	Original Value	Comments
Working Life	4.00 - 6.00 min @Temperature 23.3 °C
Shelf Life	10.0 Month	Cartridges
	10.0 Month	Activator (B side)
	13.0 Month	Adhesive (A side)

Descriptive Properties
Fixture Time (mins)	15 to 25	74°F cure. Varies with bond gap and temperature.
Gap Filling (in)	0.012 to 0.5	Room temperature cure.
Mix Ratio by volume	10 to 1	Adhesive to Activator. Room temperature
Mix Ratio by weight	8.86 to 1.0 or 1.02	Adhesive to Activator. Room temperature

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PITWP9005 / 239515

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