Polycell One Coat Damp Seal is a high-performance, stain-blocking, and sealing solution designed to permanently lock in damp stains and prevent them from reappearing through paint. Available in both 1L and 500ml sizes, this product is ideal for professional decorators and DIY users dealing with persistent damp patches on interior walls and ceilings.

This ready-to-use coating forms a tough, water-resistant barrier that effectively seals damp stains caused by condensation, moisture ingress, and minor penetrating damp, allowing for immediate redecorating over previously stained areas. Its one coat application saves time and labour, making it a go-to product for quick and efficient repair and renovation work.

Unlike regular paints, Polycell One Coat Damp Seal is specifically formulated to deal with damp-related discolouration, stopping it from bleeding through emulsion or wallpaper. It can be used on plaster, concrete, brick, and masonry surfaces.

Key Features:

1. One Coat Coverage:
   Just one application is enough to seal most household damp stains, reducing the need for reapplication or undercoating.
2. Permanently Seals Damp Patches:
   Locks in moisture-related stains and prevents them from spoiling the finish of topcoat paints or wallpaper.
3. Water-Resistant Film:
   Creates a durable, breathable membrane that allows walls to dry while protecting the decorative surface.
4. Ideal for Walls and Ceilings:
   Suitable for areas affected by condensation or minor penetrating dampsuch as near windows, bathrooms, kitchens, or cold exterior walls.
5. Paintable:
   Once fully dry, it can be overcoated with most water-based or solvent-based decorative paints.
6. No Sanding Required:
   Delivers a smooth, solid base finish thats ready for decorating without additional surface preparation.

Product Variants:

• Polycell One Coat Damp Seal 500ml
  Ideal for small areas or spot treatments.
• Polycell One Coat Damp Seal 1L
  Suitable for medium to large wall or ceiling sections.

Technical Specifications:

1. Product Name: Polycell One Coat Damp Seal
2. Sizes Available: 500ml and 1L
3. Finish: White, matt
4. Formulation: Ready-to-use liquid
5. Application Method: Brush or roller
6. Drying Time: Touch dry in approx. 4 hours; fully dry in 612 hours (depending on temperature and humidity)
7. Coverage: Approx. 810m per litre
8. Recoatable: Once completely dry
9. Surface Compatibility: Plaster, concrete, brick, masonry

Ideal Applications:

1. Damp patches on internal walls and ceilings
2. Areas affected by minor water ingress or condensation
3. Bathroom and kitchen ceilings
4. Cold exterior walls with staining
5. Areas behind furniture where airflow is restricted

Important Notes:

• Not a Damp-Proofing Product:
  This product seals stains caused by damp but does not stop the cause of the damp itself. For rising or penetrating damp, underlying sources must be addressed first.
• Do Not Apply to Actively Wet Surfaces:
  Ensure the area is dry to the touch before applying. Excessively wet substrates should be treated and dried before use.

FAQs (Frequently Asked Questions):

Q: Can I use this product to treat rising damp?
A: No. This product seals stains but does not cure rising damp. Consult a damp specialist for appropriate treatment for structural damp issues.

Q: How long should I wait before painting over it?
A: Wait until the product is fully dry, typically 612 hours, before applying emulsion or other topcoats.

Q: Is it suitable for exterior walls?
A: No, Polycell One Coat Damp Seal is intended for interior use only.

Q: Can I wallpaper over it?
A: Yes, once completely dry and sealed, it provides a suitable surface for wallpaper application.

Q: Will it prevent future damp?
A: It seals existing stains but does not prevent future moisture ingress. Address any underlying issues to avoid recurrence.

Warranty Information:

Polycell products, including One Coat Damp Seal, are backed by a standard manufacturers warranty covering defects in materials or workmanship when used as directed. The warranty does not cover failure due to misuse, poor preparation, or application on unsuitable surfaces (e.g., actively wet or untreated damp).

For complete warranty terms or to make a claim, refer to the product packaging or contact Polycells customer service team.

Conclusion:
Polycell One Coat Damp Seal is a fast, reliable solution for sealing damp stains and restoring discoloured walls and ceilings to a paintable condition. Available in 1L and 500ml sizes, its perfect for both small touch-ups and larger renovation projects. With just one coat, you get professional-level stain sealing, allowing you to decorate with confidence and peace of mind.