Johnstones Trade
Ultra Primer Sealer Brilliant White 5L

FREE next working day delivery available
£117.00 inc. VAT
Trade customer? - log in to get your prices. close

Tell us where you are to check stock for Click & Collect:

Quick drying, 3 in 1 primer sealer for a variety of surfaces. Great adhesion and stain blocking.
Ultra Primer Sealer Brilliant White

In detail

Johnstone's Trade Ultra Primer Sealer is a high performance, quick drying, alkali resisting primer sealer manufactured from a tough acrylic resin with stain blocking properties. 

Primes and seals plaster, plasterboard, cement render, timber, bare masonry, interior stone and fibre cement boards, wood paneling, ceramic and glazed tiles, doors, trim, windows and any surface where great adhesion, fast drying, stain blocking properties are needed.

Application Methods
Up to 10sq/m per litre 
VOC level
Touch dry
Up to 1 hour 
1-4 hours 
Water & Detergent 

Additional information


Ideal for use in private and public buildings where its low odour properties, combined with ease of application and speed of drying, allow the work to be completed with a minium of disruption.


All surfaces to be painted should be clean, dry and free from loose and flaking material. Surfaces should be suitably prepared before application. Rub down previously painted surfaces with fine waterproof abrasive paper. Hard wall plasters should be scored with coarse glasspaper. Avoid the inhalation of dust. Wear a suitable face mask if dry sanding.


Stir well before use. Apply one full coat, brushing firmly into the surface. Allow 3 hours to dry under normal conditions before applying the a first coat of Ultra Primer Sealer thinned with up to 20% clean water. required paint finish. For best results, apply by brush as this assists the Porous surfaces should be sealed with primer to penetrate the surface. Alternatively Ultra Primer Sealer can be applied by airless spray. Allow fresh plaster to dry thoroughly before application. Do not apply when air or

surface temperature is below 10°C.


Johnstone's Ultra Primer Sealer will cover approximately 10 square metres per litre depending on the nature and porosity of the surface being painted.

Drying time

Touch dry in 30 minutes.

Recoatable after 3 hours.

After use

Remove as much product as possible from application equipment before cleaning. Replace lid firmly. Clean equipment immediately after use with warm soapy water and rinse thoroughly. Some local authorities have special facilities for the disposal of waste coatings. Do not empty product into drains or watercourses.

General Information

Thinner: Water.

To avoid the risk of spillage, always store and transport in a secure upright position.