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Crestabond® M1-04SL Structural Adhesive

1 of 13 products in this brand
Crestabond® M1-04SL Structural Adhesive is a toughened, two-component 10:1 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.

Chemical Family: Methacrylates

Product Type: 2K (2 component) Adhesive, Adhesive, Encapsulant, Potting Compound, Structural Adhesive

Application Area: Buses, Car, Caravans, Diggers, Doors, Electric Vehicle (EV) Batteries, Harvesters, Housing, Marine Applications, Nacelles, Tractor, Train, Truck, Wind Mill Blades, Windows

Compatible Substrates & Surfaces: Acrylic, Acrylonitrile Butadiene Styrene (ABS), Aluminum, Carbon Fiber, Carbon Steel, Composites, Epoxies, Metal, Polycarbonate (PC), Polyesters, Polyurethane, Polyvinyl Chloride (PVC), Stainless Steel, Vinyl Esters

Technical Data Sheet

Knowde Enhanced TDS

Identification & Functionality

Chemical Family
Chemical Name

Features & Benefits

Product Benefits
  • The shelf life of Crestabond product is defined from date of manufacture when stored in the original packaging, out of direct sunlight and at a consistent temperature between 2°C and 23°C. The expiry date is indicated on the product labels. Exposure to temperatures above 23°C will reduce the shelf life of the product.
  • To achieve the maximum shelf life it is highly recommended that these products are cold stored, ideally between 2°C and 10°C. This ensures optimal and consistent product performance throughout the stated shelf life and provides protection to the product when exposed to short periods of unfavorable temperature conditions experienced in the supply chain.
  • These products do not require protection from freezing however care must be taken to allow the material to slowly recondition to workshop temperatures. The use of warm air blowers or heated jackets must be strictly avoided as they can cause extreme localized heating, leading to a complete loss of reactivity, gelling and/ or impact to mechanical performance. Bulk product and cartridge material should be opened only immediately prior to use.

Applications & Uses

Produt Application
  • Prior to bonding, ensure the substrate surface is clean by following the surface preparation instructions provided. Bulk dispensing equipment should be in good operating condition. Dispense the adhesive at a slow rate initially onto a non-bonding surface until the mixed bead color is uniform.
  • Check the dispensed bead for cure quality before beginning the bonding process. Dispense enough adhesive to fill the bond gap before parts are mated. Avoid dry bonds by using adequate pressure to mate parts and clamp properly to prevent joint movement.
  • The working time is the approximate time after mixing that the adhesive is still usable. The bonding process must be completed before the working time of the mixed adhesive expires. The viscosities of both adhesive and activator are affected by temperature.
  • The adhesive, activator and parts to be bonded should be allowed to attain workshop temperature of between 18°C and 25°C (64°F and 77°F) prior to bonding. The operating temperature should be maintained during the bonding process and until the adhesive is sufficiently cured to allow movement of the assembly.
  • Typically, such movement may be possible after the fixture time of the adhesive is achieved. Ambient temperature, bondline thickness and the substrate materials being bonded can all affect the fixture time. For industrial/commercial use only.
  • Not to be used in household applications. The user must determine the suitability of a selected adhesive for a given substrate and application. This product is intended for use by skilled individuals at their own risk. Recommendations contained herein are based on information we believe to be reliable.

 

Substrates
  Recommended Substrates
(Lap Shear Strength MPa4)

Non - Recommended
Substrates

Plastics Acrylic8 20 - 24 MPa
PVC8 16 - 20 MPa
ABS8 13 - 17 MPa
Other: Urethanes and common
engineering thermoplastics

Low Surface Energy Plastics
e.g. PP, PE & PTFE
(use Crestabond PP-04)

Metals Stainless9 13 - 17 MPa
CRS9 13 - 17 MPa
Aluminum9 17 - 21 MPa
Other: Powder Coated Metals,
Carbon Steel

Zinc/ Galvanized Coated
Metals,
Copper

Composites

GRP/FRP8 8 - 12 MPa
Carbon Fiber/ Polyester
DCPD Modified Vinyl Esters
Epoxy10
Gelcoats11

 
Surface Preparation

The surface to be bonded can affect the strength and durability of the bond joint. Appropriate treatment may be required to ensure that there are no traces of oil, grease, dirt or release agents through the use of a degreasing agent, for instance acetone or another degreasing agent on the joint surfaces. Mechanically abrading or chemically etching degreased surfaces can make bond joints more durable and stronger. If abrading, a second treatment of degreasing is highly recommended. Do not use petrol (gasoline), low grade alcohol or paint thinners.

  1. 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.
  2. Thermoplastics - The surface must be clean, dust-free and dry. A suitable solvent such as iso-propanol can be used to degrease.
  3. Composites - The surface must be clean, dust-free and dry. This can be achieved by the use of proprietary strippable cloths such as peel-ply (without lubricant contaminates). The laminate should be fully cured prior to bonding and if the laminate surfaces are more than 3 days old, it is recommended that the surface must be cleaned with a suitable solvent or cleaner with a lint-free, clean cloth prior to bonding.

Surface preparation, such as mechanical abrasion, is likely to be needed on gel coat surfaces and molded surfaces where release agents are likely to be present. When bonding epoxy laminates please test bond strength prior to application.

Properties

Mechanical Properties
ValueUnitsTest Method / Conditions
Tensile Strength³16 - 20MPa
Tensile Modulus³600 - 1000MPa
Tensile Elongation³min. 40%
Recommended Operating Temperature⁵-40 to 100°C
Aluminium Lap Shear⁴22 - 27MPa
Typical Properties
ValueUnitsTest Method / Conditions
Specific Gravity0.96 - 1.02g/cc
Mix Ratio (by volume)10
Mix Ratio (by weight)9
Application Properties
ValueUnitsTest Method / Conditions
Working Time¹4 - 7 .minutes
Fixture Time²10 - 12 .minutes
Gap Filling1 - 5mm
Mixed ColorGrey
Recommended Application Temperature18 - 25°C
Viscosity⁶
50-150 & 300-650 dPa.s
Notes

1 - Working time measured with 9g mass of adhesive with 8.6:1 mix ratio by volume at 24°C.

2 - Fixture time defined with 23°C ambient temperature achieving >1.4MPa.

3 - Tested to ASTM D638.

4 - Metals tested according to ISO 4587, Thermoplastics according to ASTM 2564 and GRP according ASTM 5868.

5 - Maximum temperature where an ISO 4587 lap shear sample, 0.26mm bondline thickness achieves >3MPa.

6 - Viscosity measured using HAKKE RV1 Rheometer at 25°C

8 - Substrate failure when tested.

9 - Cohesive failure when tested.

10 - Surface preparation of epoxy laminates may be necessary and testing should be performed to ensure sufficient bond strength is achieved.

Regulatory & Compliance

Certifications & Compliance
Quality Standards

Packaging & Availability

Regional Availability
  • Global
Packaging Information

Crestabond M1-04SL is supplied in

  • 18Kg plastic pails
  • 180Kg drums
  • Pre-packed 400ml co-axial cartridges
  • 50ml and 490ml side by side cartridges

Storage & Handling

Shelf Life
12 Months
Storage Information
  • The shelf life of Crestabond product is defined from date of manufacture when stored in the original packaging, out of direct sunlight and at a consistent temperature between 2°C and 23°C. The expiry date is indicated on the product labels. Exposure to temperatures above 23°C will reduce the shelf life of the product.
  • To achieve the maximum shelf life it is highly recommended that these products are cold stored, ideally between 2°C and 10°C. This ensures optimal and consistent product performance throughout the stated shelf life and provides protection to the product when exposed to short periods of unfavourable temperature conditions experienced in the supply chain.
  • These products do not require protection from freezing however care must be taken to allow the material to slowly recondition to workshop temperatures. The use of warm air blowers or heated jackets must be strictly avoided as they can cause extreme localised heating, leading to a complete loss of reactivity, gelling and/ or impact to mechanical performance. Bulk product and cartridge material should be opened only immediately prior to use.