Pitted Polished Plaster



  • Suitable for application to internal substrates, and external use is possible in sheltered locations in a limited colour range.
  • Generally suitable for application to plastered or rendered masonry such as block, brick or concrete and to taped and skimmed boards such as Bluclad, plasterboard, GRG (glassfibre reinforced gypsum), primed MDF and on previously decorated (but not papered) surfaces.
  • Not suitable for application to substrates with high water content.

Materials and number of coats:

  • Where surfaces are of uneven suction: One coat Armourcoat K40 Primer by brush or roller.
  • Where surfaces are not uniformly flat or smooth: Two coats Armourcoat K124 or K149 Keycoat (each typically 0.5 mm) applied by trowel over primer.
  • On unsealed plasterboard or gypsum plaster: One coat Armourcoat Anti Crack Skim Coat Plaster (typically 3–5 mm) applied by trowel.
  • Topcoat: Two–three coats Pitted finish (approximate total 2–2.5 mm).


Partly self-polishing, proprietary multicoat plaster system with a non-directional open texture and a partial honed surface.

  • Applied coating for higher sheen or increased protection against soiling: White wax or black wax.
  • Applied coating for breathable water repellence, frost resistance, mould inhibition: Armourcoat Armoursil.

Features and benefits:

  • British fire test result: Class 0 as defined in paragraph a12(B) of Approved Document B, ‘Fire Safety’, to the Building Regulations 1991.
  • BS476-7:1997 Class 1 surface spread of flame.
  • System is water vapour permeable and is suitable as a finish for traditional plastered masonry, including historic buildings.
  • Pencil hardness to ASTM D 3363: 5H+. Surface hardness increases with age and carbonation of the material.
  • Impact resistance to ASTM D 2794: Two-inch pounds.
  • Shore D hardness when tested using Elcometer 3120 Shore Durometer D: 60.
  • Wet scrub resistance exceeding 10 000 cycles to ASTM D 2486.
  • Spread of flame to ASTM E 84 - 98: Class 1.
  • Compressive strength - 28 N/mm².
  • Mould and mildew resistance. Tested to ASTM D 3273 and ASTM D 3274.
  • VOC Content to ASTM D3960: 0 g/L.

General information


Wide choice of integral colours.




Water repellent.

Black wax

Standard sheen, partial protection, also intensifies dark colours.

Colourwash L-W

Insert reference.

White wax

Standard sheen, partial protection.


Low sheen, unsealed.

Show more


Selection of materials and number of coats determined by supplier to achieve required finish.



1.5–2 mm

Finished thickness.


Ten years

Ten year warranty for internal applications.

Uniclass 2015

Pr_35_31_64_64 Polymer plastersPrimary


M20/220 Multicoat proprietary plaster

M20/330 Proprietary lime:sand

Specification data - Polymer plasters Enhanced data


PT L0253.

PT L0246.

PT L0238.

PT L0121.

PT L0113.

PT L0105.

PT L0220.

PT L0147.

PT L0139.

PT L0212.

PT L0162.

PT L0154.

PT L8165.

PT L8033.

PT L8090.

PT L2077.

PT L2200.

PT L2226.

PT L0204.

PT L0196.

PT L0022.

PT L0279.

PT L0261.

PT L0006.

PT L0170.

PT L6185.

PT L0188.

PT L4107.

PT L4065.

PT L4131.

PT L4123.

PT L4024.

PT L4115.

PT L6102.

PT L6052.

PT L6110.

PT L6078.

PT L6086.

PT L6144.

PT L0469.

PT L6284.

PT L0477.

Dulux Trade.

Insert reference.


Insert reference.


Insert reference.

As sample BUK.

Input reference as marked on reverse of sample.

Product Reference

Pitted Polished Plaster

Preparatory reinforcing skimcoat

Armourcoat Anti-crack.

Applied to pre-beaded plasterboard substrates where joints are left open in the top layer by 3-4 mm.

Surface texture

As standard.

As sample BUK.

Input reference as marked on reverse of sample.


As drawing.

Show dimensions, also edge, corner and shadow joint beads by main contractor.

Environmental information

Recycled content


Contains 40% pre-consumer recycled marble.

Similar products from Armourcoat Ltd

Armuralia Polished Plaster

Armuralia Polished Plaster

Dragged Polished Plaster

Dragged Polished Plaster

Pitted Polished Plaster Metallic

Pitted Polished Plaster Metallic

Smooth Finish Polished Plaster

Smooth Finish Polished Plaster

Spatulata Polished Plaster

Spatulata Polished Plaster

Travertine Polished Plaster

Travertine Polished Plaster