3M HT40 Rite-Lok Hi Temperature Instant Adhesive

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Description for 3M HT40 Rite-Lok Hi Temperature Instant Adhesive

Provide superior performance for demanding applications where high temperatures, thermal cycling, or shock resistance is required.

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Chemical Resistance	Most oils, Chemical Resistance: Solvent resistance
Application Type	Bond, Adhesive: Instant Adhesives
1 Part or 2 Part	1-Part
Material Form	Liquid
Substrate	Porous substrate surfaces, Polyethylene, Paper, Low surface energy plastics, Polypropylene
Industry	Electronics, Electric motors, Transformers, Automotive
Manufacturer	3M
Chemistry	Cyanoacrylate, Ethyl Hybrid
Cure Method	Moisture
Viscosity (cPs)	Low, 30 to 50
Color	Clear
High Temperature Resistance (°C)	High temperature resistant, 106, 121, Thermal cycling resistance
Low Temperature Resistance (°C)	-54

Best Practices for 3M HT40 Rite-Lok Hi Temperature Instant Adhesive

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Technical Data for 3M HT40 Rite-Lok Hi Temperature Instant Adhesive

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Overview

Chemical Resistance
- Chemical Resistance - Most oils
- Chemical Resistance : Relative Solvent Resistance - Solvent resistance
Application Type
- Adhesive - Bond
- Adhesive : Instant Adhesives
1 Part or 2 Part
- 1-Part
Material Form
- Liquid
Substrate
- Porous Substrates - Porous substrate surfaces
- Plastic - Low surface energy plastics
- Polyethylene (LDPE, HDPE) - Polyethylene
- Polypropylene
- Paper
- Other - Acidic surfaces, Leather
Industry
- Automotive
- Electronics
- Transformers
- Motors - Electric motors
- Appliances
- Other - Close-fitting parts.
Chemistry
- Cyanoacrylate (CA) - Cyanoacrylate
- Other - Ethyl Hybrid
Application Method
- Other - Hand applied
Cure Method
- Moisture / Condensation Cure - Moisture
Color
- Clear / Transparent - Clear

Specifications

Cure Specs

Viscosity (cPs)	Low, 30 to 50	Test Method
Fixture or Handling Strength Time (min)	0.08 to 0.33

Material Resistance

High Temperature Resistance (°C)	High temperature resistant, 106, 121, Thermal cycling resistance
Low Temperature Resistance (°C)	-54
Vibration Resistance/Shock Resistance	Shock resistance

Other Properties

Specific Gravity	1.050

Business Information

Shelf Life Details	Storage conditions:For short term storage (<30 days), keep adhesive in a cool (60°F to 80°F [16°C to 27°C]), dry place out of direct sunlight. Keep containers tightly covered and free of moisture. Refrigeration (40°F [4°C]) gives optimum long term storage stability.;Rite-Lok™General Purpose Instant Adhesives can be expected to have a shelf life of one year from the date of shipment from 3M when stored under refrigerated conditions.
Shelf Life Temperature (°F)	140 to 176, 40
Shelf Life Type	From the date of shipment
Shelf Life (mon)	12

Best Practices for 3M HT40 Rite-Lok Hi Temperature Instant Adhesive

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1. Surface Preparation
  
  For optimum strength structural bonds, paint, oxide films, oils, dust, mold release agents, and all other surface contaminants must be completely removed. However, the amount of surface preparation depends on the required bond strength and the environmental aging resistance desired by the user. Typical quick surface preparation would include wiping with a clean solvent (such as isopropyl alcohol), abrading the surface with a clean fine abrasive, and then wiping again with a clean solvent to remove loose particles.
  
  Note: When using solvents, extinguish all ignition sources, including pilot lights, and follow the manufacturer’s precautions and directions for use.
  
  Ensure that parts are clean, dry, and free from oil and grease.
  
  A Rite-Lok™ Instant Adhesive Activator may be required if there are bonding gaps or porous substrate surfaces, if substrates are low surface energy plastics (e.g., polyethylene, polypropylene) or if substrates have acidic surfaces (e.g., paper, leather).
2. Application
  
  Bond speed is typically very fast so ensure that parts are properly aligned before dispensing.
  
  Product is normally hand applied from the bottle. Apply sparingly to one surface and press parts firmly together until handling strength is achieved. As a general rule, as little cyanoacrylate as possible should be used. Over application will result in slower cure speed and lower bond strength.
3. Curing
  
  Full bond strength will typically be achieved within a 24 hour cure time.
  
  Low humidity or low temperature conditions will slow down the cure rate.
  
  After curing, Rite-Lok™ General Purpose Instant Adhesive bonds are suitable for use up to about 180°F (82°C). At 180°F (82°C) the bonds will be approximately70% of the strength at room temperature and at 212°F (100°C) about 50% of full strength.
  
  Cyanoacrylate bond resistance to most oils and solvents is excellent. Long term humidity, moisture, or water immersion may affect the strength of a cured cyanoacrylate bond depending on the substrates and the bond gap. Testing is recommended to evaluate the effect.
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