• Available in – 1L & 5L *new*
  • 2-In-1 Primer and Liquid Mask
  • Dual purpose primer & peelable mask
  • Can be sprayed, rolled or brush applied
  • Perfect for glassed timber doors
  • Extremely fast
  • Clean removal
  • Paint & Peel







H20 Prime & Mask Benefits – 
  • Paint & Peel
  • Extremely fast
  • Clean removal
  • Dual purpose primer & peelable mask
  • Can be sprayed, rolled or brush applied
  • Perfect for glassed timber doors


Dual-purpose primer and peelable H2O Liquid Mask® – for a professional finish on windows and doors.  Can be applied with a sprayer, roller or brush.

An exceptional finish starts with impeccable masking.  With H2O Liquid Mask® all you need to do is spray it, roll it or paint it on, all over and nice and thick!  No taping or scraping needed for the best finish ever.

H20 can be used as a primer over knots if the timber is sanded.  Can also be used as a primer for external environments

Click here to Download the H20 TDS

Click here to Download the H20 MSDS

Click here to watch some satisfying clips from some of our awesome H20 users


How to Apply – 

Step 1 – Prepare Surface [ Remove all debris & dust and sand down timber. If the timber had been previously painted ensure the timber is fully sanded before applying h20. ]

Step 2 – Apply H20 Prime & Mask [ Stir thoroughly then apply H20 with either a synthetic bristle brush, long nap roller (mid pile) or conventional airless sprayer, recommended typical fluid tip size of 0.013 to 0.017. Theoretical coverage 2m squared /Litre at 200ЧM DFT ]

Step 3 – Leave to Fully Cure [ Once H20 prime & mask turns clear ( fully cured) – repeat process for a second coat . This should take 30-60 minutes ]

Step 4 – Cut & Peel  [ Carefully cut around inside edge of frames with a sharp knife & simply peel mask away from glass. After use, clean applicators with water. ]


Click here to watch how to apply the revolutionary H20 Prime & Mask



Technical Details – 

Theoretical coverage : 2m squared per litre at 200ЧM DFT

Recommended DFT : 200ЧM DFT

Usual number of coats : 2

Water Resistance : Resists Water Splash. Prolonged water contact may soften and remove product.

Weather Resistance : Do not leave unprotected for more than 3 months, externally

Colour : White when liquid, dries clear

Dry time (minimum) :  Touch dry in 30 min to 1 hour @ 25°C, depending on RH

Full cure : 24 hours @ 25°C, 40% RH

Recoat time (minimum) : 1 hour @ 25°C

Primer required : No

Not to be used on any plastic or PVC surfaces. Always test on intended surface/substrate before use.


Settings for spraying H20 


  • Tip Size – 517
  • Pump Pressure – 2000 PSI



  • Needle Number- 1.8MM Tip Size
  • Air Number – Turbo Control at 7
  • Set Fluid Outlet To Max
  • Dilution Required – The Less The Better – Start With 5% Clean Water


Click here to see Colin Bidwell Using H20 Prime & Mask


Additional information


1LTR H20 Primer & Masking Liquid, 5LTR H20 Primer & Masking Liquid * new & improved packaging *

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