Henkel Polybit Polyseal, CR PG Polysulphide Sealant 2.5L, Durable Polysulphide Joint Sealant

Henkel Polybit Polyseal CR PG is a polysulphide sealant designed to seal and protect joints and surfaces from moisture and water. It forms an elastic, waterproof seal suitable for a range of projects such as sealing around windows and doors, gutters, roofs, and other joints exposed to the elements.

This sealant adheres well to multiple substrates, including wood, metal, brick, concrete, plaster, and other common construction materials. Surface prep (clean, dry, and free of contaminants) helps achieve the best adhesion.

Yes. Once the sealant has cured, it can be painted over, allowing you to match surrounding finishes.

Load the sealant into a standard caulk gun, cut the nozzle to the desired bead size, and apply a continuous bead along the joint. Tool the bead with a damp finger or appropriate tooling tool to ensure good contact with both surfaces. Wipe away excess uncured material with an appropriate solvent or cloth. Ensure the area is well-ventilated during application.

The product cures to form an elastic, waterproof seal and is designed to withstand outdoor exposure. Cure times vary with temperature and humidity; ensure surfaces are clean and dry before application and allow adequate time for full cure before exposing to heavy moisture or traffic.

Yes. It is suitable for indoor use and is described as low in VOCs, making it a more eco-friendly choice for interior applications while reducing odor during application.

It provides elastic, waterproof sealing designed to resist moisture, UV exposure, and mildew. The formulation is built to tolerate temperature fluctuations and to maintain integrity over time when applied to appropriate joints.

Common use cases include sealing around windows and doors, gutters, roof joints, concrete or masonry joints, and other exterior or interior joints where moisture protection is required.

Store in a cool, dry place in its original container, tightly closed. Keep away from heat sources and direct sunlight to maintain performance and shelf life.

Consider the joint type, substrate compatibility, required cure time, paintability, and exposure conditions (indoor vs outdoor). For a like-for-like comparison on Fepy, you can review product pages such as Henkel Polybit Polyseal CR (2.5L) and other polysulphide options listed on Fepy to evaluate differences in adhesion, durability, and finish. See these related products for quick comparisons:

Compared to other polysulphide sealants on Fepy, Polyseal CR PG emphasizes elasticity, moisture resistance, and paintability after curing, making it suitable for joints exposed to moisture and weathering. For a side-by-side look, check the following product pages on Fepy:

Here are closely related polysulphide options available on Fepy for quick comparison: