Stain Blocker Paint
FailDemand is soft, at -22.7% this quarter, so Stain Blocker Paint is a Fail.
- Flapen Score
- 48 / 100Ranks 1,131 of 2,225 DIY & Tools niches · −1 vs the category median of 4948
- Market size
- £278K/yr198K searches / yr
- 90-day growth
- -22.7%search demand this quarter
- Competition
- 68%top-5 click share · 9 brands · 76 sellers
Flapen Score
Stain Blocker Paint against its category
The dotted line is the DIY & Tools average. Past it, Stain Blocker Paint is stronger. Inside it, weaker.
Market
The Stain Blocker Paint market on Amazon at a glance
Shoppers on Amazon United Kingdom searched for Stain Blocker Paint 198K times last year and spent an estimated £278K. The top 5 brands take 92% of clicks. Flapen scores it 48 out of 100, a Fail.
01 · Demand
An estimated 10.9% of those searches ended in a purchase.
Shoppers searched for this 198K times in the last 12 months. That counts every search on Amazon United Kingdom for this niche's terms. An estimated 10.9% of those searches ended in a purchase. Searches in the last 90 days moved -22.7% against the 90 days before. Searches, conversion and average price together put the market at an estimated £278K a year.
- Searches, last 12 months
- 198K
- Growth, 90 days vs prior 90
- -22.7%
- Conversion, latest week
- 10.9%
- Market size, estimated
- £278Ka year
- Peak month
- February1.5× the quietest month
- Top search term
- stain blocker paint54K searches a year
02 · Price
A sale here is worth £12.91.
Listings sell for £12.91 on average, from £6.37 to £27.66. Amazon reports units sold in ranges. This niche sold 15K to 20K a year. The average listing sells 750 to 1,000 of them. At £12.91 that is £10K to £13K a year per listing.
- Average price
- £12.91under the $15 to $100 sweet spot
- Price range
- £6.37–£27.66
- Amazon United Kingdom median price
- £12.12across 27,606 niches
- Units sold a year
- 15K–20K
- Units per listing a year
- 750–1,000
- Revenue per listing a year
- £10K–£13K
- Returns
- 0.8%of orders · Amazon United Kingdom median 0.6%
03 · Entry bar
The bar here is reviews.
84% of listings pay for placement with sponsored ads. 84% ship with Prime. On an average day, 1.1% of listings are out of stock. The average listing ranks #91 within Adhesives & Sealers. It carries 1,604 reviews at 4.43 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 84%
- Prime listings
- 84%
- Out of stock, average day
- 1.1%
- Average rank
- #91in Adhesives & Sealers
- Average rating
- 4.43 starsAmazon United Kingdom average 4.36 stars
- Average reviews
- 1,604per listing
- Listings tracked
- 19
04 · Newcomers
1 of last year's 1 launches cleared the first-year sales bar.
1 products launched here in the last 12 months. 1 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 71 months on average, so the names here are established.
- Launched, last 12 months
- 1
- Successful launches
- 1Amazon's first-year sales bar
- Average brand age
- 71 months
Products
Top Stain Blocker Paint products & what they sell for
The products selling here, as shoppers see them on Amazon. Shelf share and sales are our estimates.
Prices and ratings read from Amazon on Jul 22, 2026. The live listing can differ.
Top sellers
by estimated 90-day click share
Rustins Stain Blocker & Multi-Surface Primer 250ml- Versatile All-Surface Primer for Blocking Stains and Sealing Porous Materials; Optimal for Walls Ceilings and Wood
- Price
- £6.37
- Rating
- 4.3/5
- Reviews
- 2,532
- Age
- 9y ago

Zinsser ZINCSP500 500 ml Cover Stain Primer/Finish Paint
- Price
- £10.06
- Rating
- 4.6/5
- Reviews
- 933
- Age
- 15y ago

Zinsser Cover Stain 1 Litre
- Price
- £15.55
- Rating
- 4.6/5
- Reviews
- 1,577
- Age
- 13y ago

Polar Damp & Stain Block Spray - 500ml Matt White - Covers Damp Mould Grease Nicotine & Rust Stains - Anti Mould & Damp Proof Paint for Internal Walls & Ceilings - Dries in 10 Min Low Odour
- Price
- £10.12
- Rating
- 4.3/5
- Reviews
- 3,347
- Age
- 5y ago

Everbuild Stain Block Highly Pigmented Easy to Use White 400ml
- Price
- £6.51
- Rating
- 4.4/5
- Reviews
- 4,385
- Age
- 13y ago
Trending
estimated 90-day click momentum
Polar Stain Blocker Paint - Matt White - 1 Litre | Ideal for Concrete Cement Wood Brick & Painted Surfaces | Prevents & Removes Stains Grease Water Marks & Rust on Internal Walls & Ceilings
- Price
- £20.14
- Rating
- 4.4/5
- Reviews
- 285
- Age
- 4y ago

Bartoline Stain Blocker Spray 400ml Matt Finish Blocks Mould Mildew Damp and Grease Stains Fast-Drying Primer or Topcoat for Walls Ceilings Plaster and Woodwork
- Price
- £8.03
- Rating
- 4.3/5
- Reviews
- 79
- Age
- 11mo ago

RUSTINS Stain Blocker & Multi-Surface Primer 1ltr -Versatile All-Surface Primer for Blocking Stains and Sealing Porous Materials; Optimal for Walls Ceilings and Wood
- Price
- £13.96
- Rating
- 4.3/5
- Reviews
- 2,532
- Age
- 9y ago

Zinsser BIN Primer-Sealer & Stain Killer 1 Litre
- Price
- £20.19
- Rating
- 4.6/5
- Reviews
- 788
- Age
- 14y ago

Zinsser ZINCSP500 500 ml Cover Stain Primer/Finish Paint
- Price
- £10.06
- Rating
- 4.6/5
- Reviews
- 933
- Age
- 15y ago
Newest
by launch date
Bartoline Stain Blocker Spray 400ml Matt Finish Blocks Mould Mildew Damp and Grease Stains Fast-Drying Primer or Topcoat for Walls Ceilings Plaster and Woodwork
- Price
- £8.03
- Rating
- 4.3/5
- Reviews
- 79
- Age
- 11mo ago

Dryzone Damp Proof & Damp Seal Paint White (500ml) for Walls Bathrooms Ceilings & Interior Surfaces Blocks Damp Mould & Stains - Quick Drying Matt Undercoat Paint
- Price
- £14.21
- Rating
- 4.4/5
- Reviews
- 312
- Age
- 1y ago

Pro-Kleen Damp & Stain Block Spray Paint Primer White Matt 400ml - Covers Damp Mould Grease Nicotine & Rust Stains - for Walls & Ceilings - Leaves a Waterproof Barrier
- Price
- £6.71
- Rating
- 4.3/5
- Reviews
- 439
- Age
- 3y ago

Polar Stain Blocker Paint - Matt White - 1 Litre | Ideal for Concrete Cement Wood Brick & Painted Surfaces | Prevents & Removes Stains Grease Water Marks & Rust on Internal Walls & Ceilings
- Price
- £20.14
- Rating
- 4.4/5
- Reviews
- 285
- Age
- 4y ago

Polar Stain Block Spray - 1 x 400ml | Matt White | Prevents & Removes Stains Grease Water Marks & Rust on Internal Walls & Ceilings | Primer Spray for Wood Plastic Tiles & Painted Surfaces
- Price
- £8.94
- Rating
- 4.2/5
- Reviews
- 416
- Age
- 4y ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 68% of clicks. Leaders hold, but buyers still shop past them.
Brands
9 flat
Sellers
76
Est. top-5 brand share
92%
Top 20: 100%
Est. top-5 click share
68%
Top 20: 100%
Open market
5%
- Zinsser39%
- RUSTINS28%
- Polar Specialist Coatings16%
- Everbuild5%
- Pro-Kleen3%
- Polycell3%
- Open — no brand owns it (3 brands, 5%)
Demand
Stain Blocker Paint search demand
Weekly searches over the year, seasonality beneath. Pick a range.
No pronounced peak months · busiest ÷ quietest = 1.5×
Search terms
Top Stain Blocker Paint search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- stain blocker paint54K/yr
- zinsser cover stain37K/yr
- stain block23K/yr
- stain blocking primer14K/yr
- stain block paint11K/yr
- stain blocker9K/yr
- stain blocking paint6K/yr
- water stain cover paint7K/yr
- zinsser stain block6K/yr
- zinsser cover stain primer3K/yr
Reviews and returns
What reviews say buyers love and hate about Stain Blocker Paint
We read the reviews and the return reasons for every product selling here.
“smells very strong”
Every topic
Every topic buyers talk about, one row each.
Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote.
16 topics
Keep looking
Related niches
Niches in the same category that score near this one. Research these next.
Best Flapen score
The highest-scoring niches we track right now, across every category.
FAQ
Common Stain Blocker Paint questions
Answered from the same tracked data.
Figures on this page are estimates modeled from public Amazon pages and third-party keyword data. Amazon does not supply them, and no connected seller's data is used. How we handle Amazon data








