Skip to content

Cranfield Spectrum Exterior Acrylic Varnish - 1 Litre

In stock
Handwritten card


Exterior Varnish: Spectrum Exterior Acrylic Varnish For Mural Paintings 1 Litre

Spectrum varnish is a hard, acrylic varnish for the protection of outdoor acrylic paintings and installation artwork. This milky solution of acrylic varnish will dry clear. Exterior varnish can be thinned with water. It is not graffiti proof, but will resist dirt and grime. Acrylic exterior varnish does not include UV protection but will extend the life time of your artwork beneath. Soft Satin Finish Varnish: milky fluid consistency dries clear to a durable finish 1 Litre Plastic container

Coverage: 1 Litre = 9 x 10 feet (approx 2.75 metre x 3 metre)

Recommendation:  Apply on warm dry days – ideally when there is a slight breeze to aid a steady drying speed. Make sure your acrylic paint is absolutely dry before applying any varnish.  We recommend two or three thin coats of exterior varnish rather than one thick coat (one thick coat can result in a cloudy sad finish!)

If you need UV protection use a solvent based varnish.



Coronavirus (COVID-19) Response

Our physical shop has now reopened with social distancing measures in place for the safety of all staff and customers.

We are still operating online, telephone and click and collect orders during this time.


Click & Collect available from 8th June.

Free UK Mainland delivery on small packet items under £50.

Free UK Mainland delivery on orders over £50.

Telephone: 01453 886 560 Email:

You can read further details and keep up to date with our temporary changes here.

Free UK Mainland delivery on small packet items under £50.

Free UK Mainland delivery on orders over £50.

Delivery is charged as priced on each order (*International delivery exceptions apply).

Standard Delivery: We aim to process and dispatch orders within two days. However at peak order times this may not always be possible so please allow 3-5 days for processing. WITH COVID-19 ALSO AFFECTING OUR OPERATION PLEASE ALLOW 2 WORKING DAYS FOR PROCESSING ORDERS. THANK YOU FOR YOUR PATIENCE.

If you are unavailable when our delivery partner tries to deliver your order, they will usually try to deliver again the next working day or they will drop a card in to offer you a collection from a local collection point. If you should refuse delivery of goods, or are not available to accept the delivery on both delivery attempts, you will be required to cover any extra costs incurred.

See full delivery information and pricing here.


We hope you are very happy with every purchase from Pegasus Art however if you are not entirely satisfied we are here to help.

Please contact us by phone or email on This is so one of our staff can determine whether you would like to return the product for a refund or exchange the product.


You have 28 calendar days to return an item from the date you received it.

To be eligible for a return, your item must be unused and in the same condition that you received it. Your item must be in the original packaging.

Your item needs to have the receipt or proof of purchase.


Once we have received your item and inspected it we will contact you.

If your return is approved, we will initiate an immediate exchange or refund to your credit card (or original method of payment). You will receive the credit within a certain amount of days, depending on your card issuer's policies.


Products returned by you because of a defect will be refunded in full, including a refund of the delivery charges for sending the item to you and the cost incurred by you in returning the item to us.

Products returned by you within the seven-day cooling-off period will be refunded in full, including the cost of sending the item to you. However, you will be responsible for the cost of returning the item to us.

Contact Us

If you have any questions on how to return your item to us, contact us.


This product has not yet been reviewed

Recently viewed items

Khadi White Rag Envelope Packs of 20 - 100gsm Khadi White Rag Envelope Packs of 20 - 100gsm
In stock
White Handmade Paper Packs of Envelopes - 20 Per Pack C7 and C6 Sizes Available These beautiful envelopes are made in Indian from 100% cotton rag paper in a 100gsm weight.  The flap on the back of the envelope has has an attractive deckle soft edge completing the smart handmade look. C7 envelopes will hold a sheet of single A7 paper, alternatively you can make your own card and fold an A6 sheet of…

Also bought items

Pentel Oil Pastels - Set of 12 Pentel Oil Pastels - Set of 12
2 in stock
A favourite started set of Oil Pastels from Pentel. Student quality with good density of colour and easy to handle. Bright, long lasting vibrant colours. Pentel Oil pastels apply smoothly and blend easily for subtle shades, tints and colour mixtures (can be blended with mineral spirits or thinners) Ideal for most types of paper (including pastel, watercolour cartridge, craft etc) as well as canvas…
Be An Artist Every Day by Susan Schwake & Charlotte Farmer Be An Artist Every Day by Susan Schwake & Charlotte Farmer
1 in stock
Be An Artist Every Day - Perfect for children, encouraging imagination! by Susan Schwake & Charlotte Farmer 600 illustrations, 144 pages Inspirational and stimulating content devised by expert author Susan Schwake introduces children to the colourful, vibrant and varied world of art. From readers with little experience to those who love all things art, Be an Artist Every Day is the perfect year-lo…


We are very sorry, but the browser you are visting us with is outdated and not complient with our website security.

Please upgrade your browser to a modern secure version to view our website.