Crestabond M7-15
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CRESTABOND M7-15 Methacrylate Structural Adhesive Product Overview Crestabond M7-15 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 M7-15 is a primer-less 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 5mm. Primer-less metal application High strength and modulus Fast setting and curing Excellent environmental resistance Ready-to-use two component adhesive Speeds assembly process Replaces mechanical fasteners Reduce labour Bonds difficult metals and plastics Characteristics of Crestabond M7-15 Characteristics Working Time/Geltime Fixture Time Flash Point Mixed Colour Working time measured with 12g mass of adhesive with 1:1 mix ratio by volume at 24°C. Liquid Properties Typical Material Properties Typical Value M7-15 Adhesive M7-15 M7-05/15 Activator Adhesive Black Specific Gravity Tensile Modulus Tensile Elongation Typical Value Tensile Strength Viscosity measured using a Brookfield Viscometer at 24°C. Stability defined from date of manufacture when left un-opened in the original containers and out of direct sunlight.

Bond Joint Strength – Typical Lap Shear Strengths (MPa) at 23°C Lap Shear Bond Joint Strength M7-15 Values are based on substrate failure where marked by * GRP/FRP* Solvent Degrease Solvent Degrease Solvent Degrease Grit Blast & Degrease Degrease, Abrade & Cold Rolled Steel Degrease Aluminium Solvent Degrease Galvanised Steel Solvent Degrease Acrylic Solvent Degrease ABS Stainless Steel Cold Rolled Steel Aluminium Galvanised Steel Acrylic 0 Test Method ASTM 5868 ASTM 2564 ASTM 2564 ISO 4587 Please contact Scott Bader Technical Services for information on other substrates. Temperature...

i) Metals Typically, the surface should be clean and dry by using an alcohol/solvent wipe and allowing the solvent to evaporate before application. Certain metals, such as carbon steel may also require mechanical abrasion and a subsequent alcohol solvent wipe prior to bonding. ii) Thermoplastics The surface must be clean, dust-free and dry. A suitable solvent such as iso-propanol can be used to degrease. iii) Composites The surface must be clean, free of dust and dry. This can be achieved by the use of proprietary strippable cloths such as peel-ply (without lubricant contaminates). The...