

Britannia Solarshield is an aluminium modified bitumen solution that works as both an additional waterproof protective layer for bituminous systems and a life extender to the overall system by way of enhanced UV protection.
Britannia Solarshield is an aluminium modified bitumen solution, works as both an additional waterproof protective layer for bituminous systems and a life extender to the overall system by way of enhanced UV protection.
To be used on roofs made of:
Rainfall immediately after application has no adverse effect
Up to 2 years if stored correctly in an unopened container. Store out of direct sunlight at temperatures between 8°C and 25°C.
Clear all areas of moss, lichen and debris by brushing or power washing and remove surface water and any contamination such as Oil or Grease and allow to dry. Apply Britannia Fungicidal Wash to prevent further fungal/algal growth.
Holes, cracks etc., must be repaired or filled prior to application.
Most roofing substrates to be treated will not normally require priming.
To the dry and cleaned surface apply Britannia Solarshield by brush or roller (solvent resistant) avoid pouring directly onto a horizontal surface. This may cause puddling during application and increase drying time.
Application Temperature should be between 5°C-25°C.
Substrate Types
Highly porous/friable surfaces
If Possible thin by 5% on the 1st coat then apply an unthinned coat of Solarshield, when dry apply the second coat at right angles to the first but it is not essential to do so.
Metal Surfaces
For long term protection these areas should be suitably prepared and primed as appropriate (see appropriate technical sheets) before application of Britannia Solarshield.
Non-porous substrates
Slate, Polished bricks should be power washed abraded and completely dry, free from any contamination to achieve adhesion of the Britannia Solarshield.
New Bitumen surfaces
If applying to a newly applied solvent based bituminous surface, then allow for a minimum of 3 days weathering BEFORE application of Solarshield.
New Water Based Protective Coating
If applying to a newly applied water based protective coating then allow for a minimum 14 days weathering BEFORE application of Solarshield.
Previously painted or coated substrates
IT IS GOOD PRACTICE TO INSPECT AND CARRY OUT ADHESION TESTS ON ANY EXISTING COATING OR SUBSTRATE PRIOR TO APPLICATION OF THE COATING.
Splits, Cracks, Joints and Seals
Pay particular attention to clean out any splits/cracks/joints and seals by scraping or brushing off with a stiff bristle brush before applying a Bitumen Primer.
Repair all faults in the surface by using a proprietary filler.
Crazed areas
These should be primed with a bitumen pimer prior to the application of a coat of Britannia Solarshield.
In areas where excessive movement may occur additional reinforcement must be incorporated into the coating.
Britannia Solarshield is not recommended for the treatment of wooden surfaces, tanking, fishponds or internal use.
Air conditioning vents should be sealed for a minimum of 24 hours during and after the application.
For cleaning equipment use white spirit immediately after use.
Customer agrees that before placing an Order, Customer has read and understood the most up to date Product Data Sheet for the Product. Where we have access to the Product Data Sheet from the manufacturer, we will either provide a copy on request, or include a link to the Product Data Sheet available on the manufacturer’s website. Customer further agrees that we have no liability for any errors or omissions contained within the Product Data Sheets. For more information, please see our Terms & Conditions of Sale.
![]() | Question:
Can this product be used on a GRP flat roof to prevent expansion in direct sun light? The roof in new and around 25 square meters. Many thanks Neil Smith |
Answer from Rawlins’ Technical Team:
Assuming the GRP roof is clean, dry, sound and prepared as detailed in the technical data sheet, Britannia Solarshield can be used as a solar reflective coating. For two coats of 25m² you will require approximately 10ltr. | |
![]() | Question:
Hi there.... Can i use this product on an EPDM (rubber) roof? thanls |
Answer from Rawlins’ Technical Team:
No, we would instead recommend Britannia Durashield FD Primer followed by Britannia Durashield in Solar Reflective White. An adhesion/pull off test is recommended when applying this system to EPDM - please see full details in the Britannia Durashield FD Primer data sheet available to download from the 'Attachments' tab on the product page. | |
![]() | Question:
Can you use on asphalt |
Answer from Rawlins’ Technical Team:
Yes, however discolouration may occur over a new asphalt, tar or bitumen surfaces; therefore an extra coat may be required, for decorative purposes only. | |
Britannia Solarshield is only available with the shipping and delivery timescales listed below - please do not contact our Customer Support Team with enquiries about alternative or earlier shipping and delivery times.
Saturdays and Sundays, as well as Bank Holidays, are not classed as working days.
Orders placed after the cut-off for this product will not be processed for earliest dispatch until 9am the next working day.
All delivery costs below are excluding VAT