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.
   Fig 1: Opening Bottle

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3. Fill bottle completely with component B.
   Fig 2: Filling Bottle With Component B

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4. Screw on spray head.
   Fig 3: Screwing On Spray Head

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5. Mix components together by shaking vigorously.
   Fig 4: Mixing Components

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6. Clean adhesive flange with isopropanol 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.
      Fig 5: Applying Primer

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      Fig 6: Identifying Working Time Of 2-Component Sip

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8. Check primer application.

   Bonded flanges are coated evenly with primer:

   result is OK.

   Fig 7: Identifying Primer Application OK

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

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

   Fig 8: Removing Excess Primer

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   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.

   Fig 9: Identifying Primer Bonded Flange (Incorrect)

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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.