Sashco 10016 Big Stretch Caulk 10.5oz White 3 Pack

Interior Exterior Sealant for Windows Doors Siding

This three-pack of Sashco Big Stretch provides a professional-grade elastomeric sealant designed for residential building and remodelling. It delivers extreme elasticity that moves with structural settling to maintain a permanent weatherproof seal without cracking. The white formula offers superior adhesion across a variety of common surfaces including windows, doors and siding. It is paintable and features easy water clean-up for a smooth application process.

Check Surface Compatibility and Temperature Range

Verify that the substrate is clean, dry and structurally sound before applying the sealant to ensure maximum adhesion. Confirm the product is rated for the specific interior or exterior exposure your project requires, including freeze-thaw stability through ten cycles. Ensure the ambient and surface temperatures fall within the manufacturer's recommended application window for proper curing. The stop-flow plunger reduces waste but does not replace the need for a standard caulking gun.

Low Odour Water-Based Formula with Minimal Shrinkage

As a water-based elastomeric sealant, it produces low odour and low VOC emissions during application and curing. Clean-up requires only water before the product skins over, eliminating the need for harsh solvents. The extreme elasticity accommodates joint movement without losing bond integrity, reducing the likelihood of gaps that compromise thermal performance. Once fully cured, the durable film resists weathering and maintains flexibility across seasonal temperature swings.