Loctite Prism 420 Clear Ultra-Low_Viscosity Wicking (2cP Water-Like) Instant CA Adhesive-General Purpose (40640)

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SKU: LT_PRISM_CA_420_42050_20GM
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Loctite 420 Ultra-Low Viscosity, Wicking (Water-Like, Water-Consistency) Multi-Surface Instant Adhesive is a clear, ultra-low viscosity (2cP), one-part instant adhesive designed for OEM assembly of difficult-to-bond materials, and most plastics. Loctite 420's improved formula allows high bond strength and speed up to temperatures of 250 °F and is suited for bonding a wide range of materials, including metals, plastics, and elastomers. Formerly known as Loctite 420 Prism.

#42040 is the 20gm bottle

#42061 is the 1lb large bottle

*Improved High Temperature Formula

  • Medium Fixture Speed (20-seconds)
  • Very High Bond Strength
  • Wicking grade, near-water viscosity (2cP) will seep into Porous Materials and Thin Cracks
  • Great for General Flat Surface Bonding


  • Brand: Loctite
  • Loctite Number: 420
  • Material Compatibility: Metal; Plastic; Wood; Leather; Rubber
  • Cure Time: 24 hr
  • Fixture Time: 20 sec
  • Product Form: Liquid
  • Package Type: Bottle
  • Package Size: 20 g
  • Shear Strength: 2900 psi
  • Maximum Operating Temperature: +180 °F
  • Minimum Operating Temperature: -65 °F
  • Viscosity Measurement: 2 cPs
  • Color: Clear
  • Viscosity Class: Ultra-Low Viscosity, Thin Near-Water-Consistency
  • Storage Condition: Keep Container in Well-Ventilated Area; Keep in Cool and Dry Place; Store in a Dry Area
  • Package Quantity: 20 g per bottle, 10 bottles per case
  • Former Name: 420 Prism