The website uses cookies to provide personalized services at the highest level, including statistical services and to adapt the content to individual preferences of users. Saving cookies can be turned off in your browser settings.
Product description:
LOCTITE 403 has low odor and low blooming properties and is particularly suitable for applications where vapor control is difficult. The product provides rapid bonding of a wide range of materials, including metals, plastics and elastomers. LOCTITE 403 is particularly suited for bonding porous or absorbent materials such as wood, paper, leather and fabric. Further information about the product can be obtained from your local technical department:

Steps to achieve the best adhesive results:
1. Bond areas should be clean and free from grease. Clean all surfaces with a LOCTITE SF 7063 cleaning solvent and allow to dry.
2. To improve bonding on low energy plastic surfaces, LOCTITE 770 Primer may be applied to the bond area. Avoid applying excess Primer. Allow the Primer to dry.
3. Activator LOCTITE SF 7455 may be used if necessary. Apply it to one bond surface (do not apply activator to the primed surface where Primer is also used). Allow the activator to dry.
4. Apply adhesive to one of the bond surfaces (do not apply the adhesive to the activated surface). Do not use items like tissue or a brush to spread the adhesive. Assemble the parts within a few seconds. The parts should be accurately located, as the short fixture time leaves little opportunity for adjustment.
5. LOCTITE activator can be used to cure fillets of product outside the bond area. Spray or drop the activator on the excess product.
6. Bonds should be held fixed or clamped until adhesive has fixtured.
7. Product should be allowed to develop full strength before subjecting to any service loads (typically 24 to 72 hours after assembly, depending on bond gap, materials and ambient conditions).

Store product in the unopened container in a dry location. Storage information may be indicated on the product container labeling. Optimal Storage: 2 °C to 8 °C. Storage below 2 °C or greater than 8 °C can adversely affect product properties. Material removed from containers may be contaminated during use. Do not return product to the original container. Henkel Corporation cannot assume responsibility for product which has been contaminated or stored under conditions other than those previously indicated.

  • Fixture Time, seconds ( at 22 °C / 50 % relative humidity ) :
    -Steel : 20 to 45
    -Aluminum : 5 to 20
    -Zinc dichromate : 30 to 60
    -Neoprene : 20 to 40
    -Rubber, nitrile : 5 to 10
    -ABS : 5 to 10
    -PVC : 45 to 75
    -Polycarbonate : 10 to 20
    -Phenolic : 5 to 10
    -Leather : 10 to 20
  • Lap Shear Strength, ISO 4587:
    -Steel (grit blasted), N/mm² : 20.3
    -Aluminum (etched), N/mm² : 14.1
    -Zinc dichromate, N/mm² : 2.2
    -ABS, N/mm² : 8.6
    -PVC, N/mm² : 2.7
    -Phenolic, N/mm² : 1.3
    -Polycarbonate, N/mm² : 6
    -Nitrile *, N/mm² : 0.5
    -Neoprene *, N/mm² : 0.7
    * substrate failure

Full technical information can be found in the technical data sheet.