Bulky & Extra Bulky Items
Please be aware that large, bulky items (large appliances, white goods, etc.) have a delivery charge of €39.99 for Bulky and €59.99 for Extra Bulky. Large bulky items will be delivered to your door on a pallet by a courier. At the present time the courier can not enter your premises so large bulky items will be left at the house door or the apartment block door. Thank you for your understanding.
Large Bulky items to EU countries have a delivery charge of €99.99
Also please note if you buy a Large Appliance such as a washing machine, fridge etc we offer a collection service for your old one free of charge
Description
Description
- Shellac primer - blocks stains permanently from smoke, water and nicotine
- Seals resinous knots in timber before top coating
- Touch dry in 15 minutes, recoatable in 45 minutes
- Adheres to gloss paint, tile and varnish - no sanding needed
- Does not raise the grain of wood, unlike water-based primers
- Covers porous surfaces including new plaster
- Coverage: 12.5 square metres per litre
- Apply by brush, roller, airless spray or HVLP spray
Smith and Rodger Blockade Shellac Primer for Stain Blocking and Sealing
A shellac primer that blocks stains at the source:
Blockade is a pure shellac, solvent-based sealer primer that permanently kills stains and odours from smoke, water, nicotine and mould rather than simply painting over them. Once applied, stains cannot bleed back through subsequent top coats, making it a reliable first coat on problem surfaces before emulsion, eggshell or gloss.
Sticks to almost any surface without preparation:
Blockade bonds directly to glossy surfaces such as tile, varnish and gloss paint with no sanding required, and it seals resinous knots in timber that would otherwise cause bleed-through on finished joinery. Because it is shellac-based rather than water-based, it does not raise the grain of wood, which reduces the preparation work needed before a final coat is applied.
Fast drying on a working day schedule:
The primer is touch dry in as little as 15 minutes and can be recoated after 45 minutes, which keeps jobs moving when time is limited. It can be applied at surface and air temperatures between -18°C and 32°C at a relative humidity of no more than 70%, giving it a practical working range for interior conditions year-round. Full adhesion cure is achieved within 3 days. Thin with methylated spirit and clean tools with methylated spirit immediately after use.
Shop the full Primers & Undercoat range from Heavins.ie, with delivery available across Ireland.
Specifications
- Brand: Smith and Rodger
- Product name: Blockade White Shellac Sealer Primer
- Size: 1 litre
- Colour: White
- Base: Shellac / solvent-based
- Coverage: 12.5 m² per litre
- Number of coats: 1-2
- Touch dry: 15 minutes
- Recoatable: 45 minutes
- Full adhesion cure: 3 days
- Application methods: Brush, roller, airless spray, HVLP spray
- Thinning agent: Methylated spirit
- Intended use: Interior
- Application temperature range: -18°C to 32°C, max 70% relative humidity
- VOC level: Very high
- Warranty: 1 Year
Shipping & Delivery
Shipping & Delivery
We are pleased to offer FREE delivery on orders over €499.00 to anywhere in the Republic of Ireland and Northern Ireland, and our Click & Collect service is FREE on all orders.
All items are shipped from the Athlone Warehouse in Co. Westmeath, Ireland so no import duties apply to the island of Ireland.
Delivery Costs to Republic of Ireland are €6.99 for orders Under €499.00
Same Day Dispatch €9.99
Orders placed before 12pm are dispatched the same working day, helping your items reach you sooner. Excludes bulky items.
Large Bulky Items
Please be aware that large, bulky items (large appliances, white goods, etc.) have a delivery charge of €39.99 for bulky items or €59.99 for extra bulky items to ROI
- We are now delivering to Northern Ireland with all delivery costs equal to the Republic of Ireland.
Returns Policy
Returns Policy
Due to our valued customer feedback, we have updated and improved our Returns Policy.
We now offer an exhange or refund on goods purchased online, and returned 14 days after purchase.
Reviews
Reviews
Frequently Asked Questions
Will this shellac primer permanently stop nicotine, smoke, and water stains bleeding back through paint?
Will this shellac primer permanently stop nicotine, smoke, and water stains bleeding back through paint?
Does this primer need sanding before applying to gloss paint, tiles, or varnished surfaces?
Does this primer need sanding before applying to gloss paint, tiles, or varnished surfaces?
How quickly can this primer be recoated?
How quickly can this primer be recoated?
Is this primer safe to use indoors?
Is this primer safe to use indoors?
Can I recycle my old appliance or electrical item with Heavins.ie?
Can I recycle my old appliance or electrical item with Heavins.ie?
Yes, Heavins.ie is fully committed to environmental responsibility and participates in Ireland’s WEEE (Waste Electrical and Electronic Equipment) recycling scheme. That means when you buy a new electrical item from us, we offer free recycling of your old appliance or electrical item.
What happens if I need to return my order?
What happens if I need to return my order?
If you change your mind or need to return an item for any reason, we’ve got you covered with a comprehensive returns policy. Returns must be scheduled within 14 days of purchase, and the item must be returned in sellable condition, including original packaging where possible. Just contact our team to arrange a hassle-free return - Returns Policy >
Why shop with Heavins.ie?
Why shop with Heavins.ie?
Heavins.ie is a proud, 100% Irish-owned, family-run business based in Athlone. When you shop with us, you're supporting local jobs, local service, and a business that’s been part of the community for over 40 years.
We don’t just say we care - it’s recognised too. Heavins.ie was named Most Trusted Website of the Year and has won the Midlands Best Customer Service award, thanks to our focus on honest service, fast Irish delivery, and real customer care.

