Henkel Polybit Polyseal Polysulfide Sealant PG 4L

It adheres well to wood, metal, plastic and concrete. For some substrates or primed surfaces, a primer may improve adhesion; always test a small area if you’re unsure.

Key features include high elongation and flexibility, moisture-curing capability, resistance to extreme temperatures, saltwater and solvents, no solvents or isocyanates, ozone resistance, and paintability with a variety of color options.

Yes, it is paintable once cured, allowing you to match or integrate with your project colors. It is available in a variety of colors to suit different applications.

Surface should be clean, dry and free of old sealant. Cut the nozzle to the desired bead size, load into a caulking gun, apply a continuous bead, and tooling should be done while the material is still fresh. Cure occurs via moisture in the air; cure times depend on temperature and humidity, typically progressing to a tack-free state and full cure over 24–48 hours or longer depending on conditions.

Priming may be required for certain substrates to optimize adhesion. For porous or challenging substrates, testing a small area first and following substrate-specific guidance is recommended.

Thoroughly clean the surface, remove dust, grease and old sealant, and ensure the area is dry. Roughening very smooth substrates can help adhesion, and any contaminants should be fully removed before application.

Work in a well-ventilated area and wear appropriate PPE such as gloves and eye protection. The product is designed to be solvent-free and free of ozone-depleting substances, but always consult the SDS for detailed safety information and proper disposal guidelines.

For alternatives on Fepy, you can explore other polysulfide sealants such as Soudal Polysulfide Sealant 4L (https://fepy.com/product/soudal-polysulfide-sealant-4l), Sika Polysulfide Sealant 4L (https://fepy.com/product/sika-polysulfide-sealant-4l), and Dow Corning Polysulfide Sealant 4L (https://fepy.com/product/dow-corning-polysulfide-sealant-4l). These options allow you to compare cure profiles, color choices, and substrate compatibility against Polybit Polyseal PS PG.

Use cases include construction joints and weatherproofing, marine and coastal sealing, industrial equipment sealing, bathroom and kitchen splash zones, and other outdoor or harsh-environment joints requiring long-term flexibility and durable seals.

Store in a cool, dry place away from direct heat or flames, with the cap tightly closed to prevent moisture ingress. Keep away from source of ignition and follow standard handling practices for chemical products. Observe the product’s shelf life and use contents before the expiry date after opening if specified by the manufacturer.

Yes, it provides long-term durability, excellent joint protection, and resistance to saltwater, solvents, and temperature changes. While the upfront cost may be higher than some basic sealants, its longevity and performance in demanding environments often lead to lower maintenance and replacement costs over time.