2-Component SIP

Information:  Use the primer within 8 hours. Apply a thin, even coat to the bonded flanges and remove excess primer. Protect surfaces you have already primed from dirt and soiling. Otherwise, the bonded joint may be defective.

Information: 

• Primed surfaces can be exposed for up to 3 days before undergoing further processing  .
• Make sure that the surfaces are not contaminated by environmental influences  .
• If the primer is left exposed for more than 3 days, it must be removed and re-applied  .
• For the reasons specified above, we recommend that body parts are bonded immediately after applying the primer  .

1. Prepare bonded flanges for bonding. (See Working with adhesives)
2. Open bottle for component A.

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   Opening bottle 

3. Fill bottle completely with component B.

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   Filling with component B 

4. Screw on spray head.

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   Screwing on spray head 

5. Mix components together by shaking vigorously.

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   Mixing components 

6. Clean adhesive flange with isopropyl and leave to dry off for 5-10 minutes.
7. Spray on primer in the area around the adhesive flange.
   1. 7.1. Process mixed primer within eight hours; do not keep any leftover primer.

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      Applying primer 

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      Working time of 2-component SIP 

8. Check primer application.

   Bonded flanges are coated evenly with primer: result is OK.

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   Primer application OK 

   Remove excess primer with a clean, dry lint-free cloth.

   A thin, violet-coloured coating of primer is sufficient for the bonded flanges.

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   Removing excess primer 

   Adhesive flanges are not evenly coated (droplet formation): result is not OK.

   If an even application of primer is not obtained, the bonded flange must be completely cleaned, sanded and primed once again.

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   Primer application incorrect 

9. Dry primer.
   1. 9.1. Allow primer to flash off; it must be dust-dry before any adhesive is applied.

      Location	Description	Type	Basic value	Tolerance 1	Tolerance 2
      Primer		Flash-off time	5 min

10. Process adhesive.