OE-Quality Repairs Made Simple

Green colored foam SikaBaffle

Repairing a vehicle to the original OE standards for performance and quality can be challenging because the equipment used in new vehicle assembly isn’t typically available in a repair facility. To help overcome that challenge, our product development team has created a range of process-friendly repair products like SikaBaffle®-277 for cavity sealing. Designed to cure quickly without the need for additional processing or heating equipment.

SikaBaffle®-277 can be easily applied in the repair shop, in CKD (Completely Knocked Down) plants, or even in vehicle production, and ensures a fast, OE-quality repair.

A Fast, Reliable Solution for Automotive Body Cavity Sealing

In repair shops or CKD assembly facilities, pre-formed acoustic parts can't be fitted into the vehicle cavity because production equipment needed to properly heat the materials isn’t available. SikaBaffle®-277 is a ready-to-use, 2-component polyurethane foam, which cures very quickly at ambient temperature and reliably seals hollow cavities against noise, air, water, and dust.

SikaBaffle®-277 can be used for manual application in vehicle production, as well as for repair and service solutions. Application is easy and safe because the two components are combined within the aerosol dispensing unit which has been specially designed to prevent excessive pressure build-up.

Spray can SikaBaffle-277


  • Filling and insulating
  • Sealing of holes, like A-, B- and C-pillars, roof, engine rails


  • Up to 2000 % expansion rate
  • Cures in 30 minutes; fully cured foam does not shrink or expand
  • Good adhesion to a wide variety of substrates
  • Prolonged open time; allows temporary interruption of the application for up to 4 minutes

Further Reading

Acoustic Test Centers

In the Sika Acoustic Test facilities, Sika Engineers and Application
Experts perform virtual and physical testing, analyze the results, and
propose solutions that deliver optimal weight-to-performance ratio for
each specific application.