The Sika Boom will cure a light yellow color.
Sika Boom Expanding Polyurethane Foam, 12oz Can

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- On any clean surface to fill, insulate and seal around gaps, beneath base plates, mud sills, top plate penetrations, corner joints, T-joints, exterior cracks, around utility panels, pipes, duct penetrations, etc.
- For dispensing as a bead for filling cracks, and crevices, and to fill smaller cavities.
- Tack-free in approximately 5 minutes or less, based on moisture/temperature conditions.
- Fully cures within 12 to 24 hours.
- Cured foam can be sanded, painted, or covered
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