pond liner seam tape
Worth a lookShows a sweet-spot price point ($19.15 avg), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Avg price
Great$19.15avg listing price — sweet spot $15–$100
Returns
Great1.5%return rate — above 5% kills the launch gate
Price range
Great$6.97–$63.26cheapest to priciest tracked listing — scored on the share inside $15–$100
Conversion
Great9.0%search→purchase rate — share of searches ending in a sale
Quality gap
Great4.2★avg incumbent rating — lower means beatable quality
Growth
Great+64.6%90-day search growth — must beat 0% to launch
Review moat
Okay1,880.96avg incumbent reviews — the moat a new listing must climb
Competition
Okay59%top-5 click share — leaders hold, buyers still browse
Brand share
Okay84%top-5 brand share — brands hold most of the demand
Market size
Bad$79K$79K/yr · 46K searches
According to Flapen's Amazon United States niche tracking, pond liner seam tape is a $79K/yr Amazon United States market (46K searches/yr). The top 5 brands hold 84% of demand. Demand peaks in Apr–May–Jun. Verdict: Worth a look — 60/100.
Data updated Jul 16, 2026 · scored weekly · How we score niches
pond liner seam tape market data
- Units sold / yr
- 5K–6K
- avg 100–250/product
- Revenue / yr
- $96K–$115K
- units × avg price
- Conversion rate
- 9.0%
- Avg BSR
- #226
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 56%
- Out of stock
- 5.1%
- Avg brand age
- 53 months
- Avg seller age
- 160 days
Competition & brand share
The top 5 products take 59% of clicks — established leaders, but buyers still shop beyond them.Brands
13 rising
Sellers
107
Top-5 brand share
84%
Top 20: 100%
Top-5 click share
59%
Top 20: 95%
Open market
12%
- Nashua41%
- ToLanbbt14%
- Xinhw12%
- HTZSSON9%
- GORILLA8%
- Wenscis4%
- Open — no brand owns it (7 brands, 12%)
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — +64.6% search growth over the last 90 days.Peak months: Apr, May, Jun · busiest ÷ quietest = 3.3×
Top pond liner seam tape search terms
- pond liner tape9K/yr
- pond liner seam tape10K/yr
- nashua duct tape9K/yr
- nashua tape11K/yr
- pond tape3K/yr
- nashua4K/yr
Top pond liner seam tape products on Amazon
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
All 24 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Nashua 3 in x 15 ft Aqua-Seal Waterproof Tape in Black
Nashua$12.424.2★694 rev
Xinhw Pond Liner Seam Tape Single Sided Waterproof Pond Repair Kit Butyl Rubber for EPDM PVC Outdoor Pond Liner Leak Repair Long-Lasting Easy to Apply
Xinhw$10.013.7★70 rev
ToLanbbt Pond Liner Seam Tape 3.15 x 32.8 Double Sided Peel and Stick Seam Tape Self Adhesive Seaming Kit Butyl Rubber Pond Liner Repair Patch Kit Waterproof for EPDM Roof Garden Cover Patch Repair
ToLanbbt$23.013.6★18 rev
Nashua 2280 Silver Duct Tape All Purpose Water Resistant 1.89 Inch x 60yds 1 Roll
Nashua$7.864.6★773 rev
HTZSSON Pond Liner Seam Tape 3 x 50 - Double Sided Butyl Adhesive Tape for EPDM Liners Waterproof Repair Patch for Ponds Fish Ponds Water Features & Outdoor Landscaping (Black)
HTZSSON$29.004.0★76 rev
Newest
by launch date
Sibosen 60x 4 Pond Liner Seam Tape Single Sided PVC Waterproof Adhesive Tape for EPDM Liners Waterproof Pond Repair Kit Thickened Peel and Stick Seam Tape for Outdoor Roof Garden Cover Patch Repair
Sibosen$9.9510 rev
Wenscis 4 Pack Pond Liner Seam Tape Bulk Total 3 x 131 Heavy Duty Double Sided Butyl Adhesive Tape for EPDM Liners Waterproof Pond Liner Patch Repair Kit for Fish Ponds Garden Water Features
Wenscis$47.256 rev
Wenscis 6 Pack Pond Liner Seam Tape Bulk Total 3 x 196 Heavy Duty Double Sided Butyl Adhesive Tape for EPDM Liners Waterproof Pond Liner Patch Repair Kit for Fish Ponds Garden Water Features
Wenscis$63.262 rev
Sibosen 60x 8 Pond Liner Seam Tape Single Sided PVC Waterproof Adhesive Tape for EPDM Liners Waterproof Pond Repair Kit Thickened Peel and Stick Seam Tape for Outdoor Roof Garden Cover Patch Repair
Sibosen$13.3610 rev
4 x 59 Pond Liner Seam Tape Single Self Adhesive Seaming for EPDM Liner
ToLanbbt$11.905 rev
Trending
90-day click momentumSibosen 60x 4 Pond Liner Seam Tape Single Sided PVC Waterproof Adhesive Tape for EPDM Liners Waterproof Pond Repair Kit Thickened Peel and Stick Seam Tape for Outdoor Roof Garden Cover Patch Repair
Sibosen$9.954.3★
Wenscis 4 Pack Pond Liner Seam Tape Bulk Total 3 x 131 Heavy Duty Double Sided Butyl Adhesive Tape for EPDM Liners Waterproof Pond Liner Patch Repair Kit for Fish Ponds Garden Water Features
Wenscis$47.253.6★
Wenscis 6 Pack Pond Liner Seam Tape Bulk Total 3 x 196 Heavy Duty Double Sided Butyl Adhesive Tape for EPDM Liners Waterproof Pond Liner Patch Repair Kit for Fish Ponds Garden Water Features
Wenscis$63.262.8★
Sibosen 60x 8 Pond Liner Seam Tape Single Sided PVC Waterproof Adhesive Tape for EPDM Liners Waterproof Pond Repair Kit Thickened Peel and Stick Seam Tape for Outdoor Roof Garden Cover Patch Repair
Sibosen$13.364.3★
REKVEN Pond Liner Seam Tape Kit - 30 Feet x 3 Inch - Double Sided Butyl Tape - Bond Seal or Repair EPDM PVC HDPE LDPE RPE LLDPE - Perfect for Small or Large Fish and Koi Ponds (Kit - Roller & Sponge)
REKVEN$27.234.1★
What buyers say about pond liner seam tape
What buyers praise and complain about, mined from review topics.What buyers love
“Adhesive is strong”
“Great product as usual”
“Worked perfectly for a few different tasks”
“As advertised”
“Price is good”
“Durable”
“it still leaked not as much”
“Easy to use”
“This waterproof tape is perfect for sealing in many cases”
“The tape is thick”
What buyers complain about
“Bad adhesive”
“Does Not Work As Promised”
“Every hole continued to leak”
“Difficult to use”
“It is very thin and falls apart”
“Most definitely not water resistant or anything else for that matter”
“Poor performance”
“Just didn't live up to the advertisement”
“Doesn't hold”
“Not worth it”
Top return reasons
Common questions
- Is pond liner seam tape profitable to sell on Amazon United States?
- The niche generates $79K/yr across 25 tracked products. 1 of 5 products launched in the last 360 days are still selling. 90-day search growth is +64.6%. Flapen's verdict: Worth a look (60/100).
- How competitive is the pond liner seam tape niche?
- 13 brands and 107 sellers compete. The top 5 products take 59% of clicks and top 5 brands hold 84% of demand.
- What do buyers complain about in pond liner seam tape?
- Top complaints mined from reviews: Adhesion/Stickiness, Functionality-Overall, Leak-Proof. The return rate is 1.5%.
- When does demand for pond liner seam tape peak?
- Demand peaks in Apr–May–Jun; the busiest month runs 3.3× the quietest.
- What does it cost to enter the pond liner seam tape niche?
- Listings span $6.97–$63.26; the average listing price is $19.15 (sweet spot $15–$100). The average incumbent carries 1,881 reviews — the moat a new listing must climb.