Hardcoat Plaster from Gyproc (25kg)

Gyproc Hardcoat Plaster - 25kg bag

Key features:
  • High quality Undercoat plaster for quick application
  • Up to 30% faster to apply than sand and cement
  • Can be used on most masonry backgrounds
  • Offers excellent impact resistance, air tightness, quick surface drying and a high resistance to efflorescence
  • 25kg bags
€19.96
Bulky Product
Delivery in
2-3 days
SKU
HC25KG
Brand
Gypsum

Gyproc Hardcoat Plaster is a gypsum undercoat plaster that is up to 30% faster to apply than sand and cement.

Gyproc Hardcoat Plaster can be used on most masonry backgrounds with a final coat of Gyproc finishing plaster for a smooth, inert, high-quality surface to internal walls.

It offers excellent impact resistance, air tightness, quick surface drying and a high resistance to efflorescence.

Gyproc Hard Coat is a high quality, easier to use alternative to sand and cement, and is suitable for use on most internal masonry backgrounds.

Key features:

  • High quality Undercoat plaster for quick application
  • Up to 30% faster to apply than sand and cement
  • Can be used on most masonry backgrounds
  • Offers excellent impact resistance, air tightness, quick surface drying and a high resistance to efflorescence
  • 25kg bags
  • Superior impact resistance
  • Pre-mixed for guaranteed quality, easy handling and less mess
  • Lightweight for rapid application
  • Same day skim finishing
  • Enhances sound insulation
  • Compatible with all Gyproc finishing plasters
  • Improves airtightness and energy efficiency
  • High resistance to efflorescence migration

You can see the Safety Data sheet here

Fire Protection

Gypsum plasters are non-combustible when tested in accordance with relevant EN and BS standards, achieving Euroclass A1 and satisfying the requirements for Class 0 surfaces in the National Building Regulations.

They provide good fire protection due to the unique behaviour of gypsum in fire.

When gypsum-protected building elements are exposed to fire, dehydration by heat (calcination) occurs at the exposed surface and proceeds gradually through the gypsum layer.

Calcined gypsum on the exposed face adheres tenaciously to uncalcined material, retarding further calcination which slows as the thickness of calcined material increases.

Once the gypsum layer is fully calcined, the residue acts as an insulating layer while it remains intact.

Air-tightness

When applied to masonry walls Gyproc Hard Coat finished with a Gyproc finishing plaster can provide a significant contribution to the overall air-tightness performance strategy of a building.

Test results undertaken in a UKAS accredited laboratory demonstrate that the application of Gyproc Hard Coat + Gyproc Skimcoat finish over 100mm Irish manufactured concrete blocks, laid on edge, can offer an air permeability performance of 0.03m/h.m2 (50pa).

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