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By Appointment to Her Majesty The Queen Manufacturers of Wood Finishes Morrells Wood Finishes Ltd Stockport

omnia® Pre-Treatment

A stain-inhibiting waterborne treatment ideally suited to spray application, offering excellent isolating power and durability for exterior Joinery applications. This product is recommended as a pre-treatment primer before the application of omnia® Prime (stain-isolating primer).

omnia® Prime Pre-Treatment should be used over the recommended wood preservative/wood treatment. Please consult the Usage tab for more information on finishing.

Good adhesion and extractive suppression, and extensively tested to BS 927-3 (Natural Exposure) and BS EN 927-6 (Accelerated Exposure) when used as a pre-treatment under omnia® Prime.

  • Pack size: 5L & 25L
  • Touch dry: 110 minutes @ 18°C
  • Sandable: DO NOT SAND
  • Recoatable: 2 - 4 hours @ 18°C
  • Coverage: 70m² per 5 litres dependent upon the size, orientation and surface quality of the item being coated
  • Packing time: Overnight minimum, dependent on conditions

Product Codes

8PT/000 Prime Pre-Treatment

MSDS

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Usage

omnia® has been designed as a full finishing system, from surface preparation to topcoat. As omnia® is available in clear and opaque topcoat systems for multiple varieties of wood, please consult our Exterior Joinery Guide for Exterior Finishing and the system guidelines below. Choose your system below:

Ensure that the substrate is clean, dry and free from contaminants. 

Wipe all surfaces with a sharp solvent such as Morrells Cellulose Thinner (2007/000) prior to coating application. Turn the wiper so that the contamination is removed rather than dispersed. Allow the solvent to flash off for 30 minutes and apply the first surface coating within two hours of cleaning. Observe Health and Safety matters. The maximum recommended wood moisture content is 18%. We do not recommend the use of American Oak due its low moisture content and therefore liability of movement.

Clear Finishes:

  1. If knots are present and require sealing, brush apply one coat of omnia® Knotting over the knots only.
  2. Apply one coat of omnia® Protect in its clear form or in the appropriate colour. Ideally applied by dipping or flow coating but if brushed or sprayed, ensure that the surface is fully wetted so that the timber absorbs the product. The system is designed such that any stain colour can be obtained by the application of tinted omnia® Protect. However, for special requirements, the topcoat can also be tinted by our Fastmatch® colour-matching facility.
  3. Seal all end grain with one coat of brush applied omnia® End Grain Sealer (8ES/000) and allow to fully dry before denibbing the End Grain Sealer only. If the joinery will exposed to excessively to water or moisture, an additional coat is recommended.
  4. Apply the first coat of omnia® Clear to a wet film thickness of 150 -175μm.
  5. Lightly denib prior to the application of the final coat, using a synthetic sanding pad (Scotchbrite or similar).
  6. Apply the second coat of omnia® Clear to a wet film thickness of 150 -175μm.

Ensure that the substrate is clean and dry.

Wipe all surfaces with a sharp solvent such as Morrells Cellulose Thinner (2007/000) prior to coating application. Turn the wiper so that the contamination is removed rather than dispersed. Allow the solvent to flash off for 30 minutes and apply the first surface coating within two hours of cleaning. Observe Health and Safety matters. The maximum recommended wood moisture content is 18%. We do not recommend the use of American Oak due its low moisture content and therefore liability of movement.

Solid (Opaque) Colours:

  1. When coating non-durable timber, pre-treat with omnia® Protect.
  2. When coating red-brown woods, such as sapele, or other woods that may stain the coating, apply a coat of omnia Prime Pre-Treatment (8PT/000), a stain-inhibiting clear isolator. Ensure the surface is fully wetted so that the timber absorbs the product.
  3. Treat/seal all end grain with brush applied omnia End Grain Sealer (8ES/000); allow to fully dry before de-nibbing only the end grain sealer.
  4. Apply one coat of omnia Prime which is a stain inhibiting white Primer to a wet film thickness of 152μm. Apply two coats at 152μm each if severe staining is seen in the first coat.
  5. Apply the first coat of omnia Colour (Opaque Topcoat) to a wet film thickness of 150-175μm.
  6. Lightly denib prior to the application of the final coat using a synthetic sanding pad (Scotchbrite or similar).
  7. Apply the second coat of omnia Colour (Opaque Topcoat) to a wet film thickness of 150-175μm.