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Magna-Tac™ M648-T

1 of 8 products in this brand
Magna-Tac™ M648-T is a high-strength, room-temperature-curing, 100%-Reactive, two-component, formulated epoxy adhesive designed for bonding all metals and other rigid materials (such as glass, ceramics, plastics, plastic foams and structural laminates) to themselves and to each other. Fully cured bonds exhibit minimal shrinkage, are electrical insulators and provide excellent resistance to weather, galvanic action and most chemical, acids and alkalis.

Product Type: 2K (2 component) Adhesive, Epoxy Adhesive

Compatible Substrates & Surfaces: Ceramic, Glass, Metal, Plastics

Cure Method: Air Dry

Chemical Family: Epoxy & Epoxy Derivatives

Technical Data Sheet
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Knowde Enhanced TDS

Identification & Functionality

Chemical Family

Epoxy & Epoxy Derivatives

Product Type

2K (2 component) Adhesive,

Epoxy Adhesive

Technologies

Ready-to-Use Products

Product Families

Ready-to-Use Products — Adhesives & Sealants

Structural Adhesives

Features & Benefits

Ready-to-Use Product Features

Acid Resistant,

Alkali Resistant,

Chemical Resistant,

Electrically Insulating,

Good Weather Stability,

High Strength,

Low Shrinkage

Applications & Uses

Markets

Adhesives & Sealants,

Industrial

Applications

Industrial — Chemical & Industrial Manufacturing

Industrial Adhesives & Sealants

Adhesives & Sealants — Industrial & Assembly Adhesives

Industrial Manufacturing

Compatible Substrates & Surfaces

Ceramic,

Glass,

Metal,

Plastics

Cure Method

Air Dry

Application

Surface Preparation

All bonding surfaces must be thoroughly cleaned, degreased and dried. For plastic surfaces, remove mold release if any.

Preparation of adhesive

Always stir each part thoroughly, weigh accurately and mix slowly to avoid entrapping air. Note: Pot life can be lengthened substantially if shallow mixing vessels are used or smaller batches are mixed. Cover mixed material to prevent water absorption. Mixed adhesive may be applied with trowel, spatula, knife, paint roller, brush, etc. Apply enough mixed adhesive to leave about 4-6 mils in the final glue line. This may be accomplished by coating 4-6 mils on one surface only or by coating 2-3 mils on each surface. If one surface is porous, more adhesive must be applied to fill the voids and yet produce a final glue line thickness of 4-6 mils.

Cure Time

Room Temperature - If cured at room temperature, assemblies can be handled in approximately 4-6 hours and develop 85 % of maximum strength in 14-24 hours.

Fast Cure

If a faster cure is required, the following cycles may be used:

Elevated Temperatures

Temperature Cure Time
150°F 60 minutes
200°F 20 minutes
250°F 15 minutes
Base

Modified epoxy

Properties

Diluent
Do not dilute
Typical Properties
ValueUnitsTest Method / Conditions
ViscosityMedium Syrup——
Weight Per Gallon9.5lbs—
Composition
ValueUnitsTest Method / Conditions
Solid Content100.0%—
Choice of Catalysts
Catalyst Number Mixing Ratio (by
weight)		 Properties Pot Life
at 77°F		 Average Lap
Shear Strength
M648-T
CH-8		 5 PARTS
1 PARTS		 For best balance
of properties.		 20 - 45 minutes
(1 qt)		 2500 psi
M648-T
CH-16		 2 PARTS
1 PART		 For best impact
and peel strength.		 20 - 45 minutes
(1 qt)		 2500 psi

Regulatory & Compliance

Certifications & Compliance

REACH (Europe),

RoHS Compliant

Packaging & Availability

Packaging Type

Cans,

Drums,

Pails

Container Sizes
  • 1 quart cans
  • 1 gallon cans
  • 5 gallon pails
  • 55 gallon drums

Storage & Handling

Shelf Life
1 year