Henkel 661

Overview

• Application Type

  • Adhesive - Bond

• 1 Part or 2 Part

  • 1 Part or 2 Part - 2 Part
  • Part A Name - Part A
  • Part B Name - Part B

• Material Form

  • Liquid

• Substrate

  • Ceramic - Ferrite
  • Glass
  • Metal - Alnico, Epoxy-Coated Metal, Metals, Painted Metal, Samarian cobalt
  • Iron - Neodymium iron boron
  • Zinc - Zinc Dichromate, Zinc Plated, Zinc plated Steel
  • Steel - Zinc plated Steel
  • Aluminum
  • Galvanized - Galvanized Steel
  • Plastic - ABS, Rigid Plastics
  • Acrylic (PMMA) - Acrylic
  • Phenolic
  • Polycarbonate
  • Polyvinyl chloride (PVC) - PVC
  • Galvanized Steel
  • Stainless Steel
  • Other - Rare earth

• Industry

  • Marine
  • Automotive
  • Electronics - Electrical, Magnet, Speakers, Generators
  • Industrial - Basket, Housings, Nameplates, Pole piece, Signs, Tags
  • Motors - DC motors
  • Sign, Printing and Graphics - Nameplates, Signs, Tags
  • Appliances
  • Construction - Frames
  • Furniture / Wood-Working - Furniture
  • Other - Speakers

• Chemistry

  • Toughened
  • Acrylic

• Cure Method

  • 2-Part Cure - Part A/Part B

• Color

  • Green - Dark Green

• Brand

  • Bondmaster

Specifications

Cure Specs

Cure Temperature (°C)	20 to 25, 20 to 25
Cure Time (min)	Rapid, 60
Viscosity (cPs)	8,500	Test Method
Fixture or Handling Strength Time (min)	0.75 to 1.50	Test Method
Work / Pot Time (min)	0.50	Test Method
Mix Ratio	1:1 (by volume), 1:1 (by weight)

Bond Strength

Structural/Load-Bearing	Structural
Peel Strength (piw)	High, 10 to 20 (pli)	Test Method
Shear Strength (psi)	High, 2,500 to 3,000, 2,000 to 2,800, 1,500 to 2,500, 2,500 to 3,000, 2,000 to 2,800, 2,000, 2,000, 2,000, 2,000, 250, 300 to 400, 300 to 400, 50 to 100, 80 to 120, 200 to 300	Test Method
Impact Strength (psi)	High, 8 to 10 (ft-lb / in2)	Test Method

Material Resistance

Chemical Resistance	Acetone, Diesel Fuel, Gasoline, Isopropyl Alcohol, Salt Spray
High Temperature Resistance (°C)	155
Low Temperature Resistance (°C)	-65
Impact Resistance	Impact resistance
Moisture/Humidity Resistance	Moisture/humidity resistance

Hardness

Durability	Excellent Durability
Shore D Hardness	60 to 65, 55 to 60, 40 to 45	Test Method

Other Properties

Glass Transition Temp (Tg) (°C)	57
Specific Gravity	0.965
Flash Point (°F)	201.2
% Solids (%)	100

Business Information

Shelf Life Details	Shelf life Part A, Package sizes larger than 2000ml six months. , Shelf life Part B, Package sizes larger than 2000ml six months. , Shelf life Mix, BONDMASTER 661 has a shelf life of one year when stored in a refrigerator. Keep away from excessive heat, sparks, flame, and sunlight.
Shelf Life Temperature (°F)	36 to 45, 36 to 45
Shelf Life (mon)	12, 12, 12

Not Good For

Don't Use With	Delrin, Polyethylene, Polypropylene, Polyurethane, Any type of elastomer, Acetal