---
title: "Prosoco — $73K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/tools-home-improvement/prosoco"
last_updated: "2026-08-08T18:26:45.825Z"
locale: en
meta:
description: "Niche score 36/100 · $73K/yr market · 21K searches/yr · $83.99 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 36/100 · $73K/yr market · 21K searches/yr · $83.99 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Prosoco — $73K/yr Amazon US Niche (2026) - Flapen"
---
# **prosoco**
**Skip it**
Brand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Market size 18Growth 56Conversion 52Competition 10Returns 68Price range 26Avg price 81Brand share 0Review moat 72Quality gap 25
**Avg price**
**Great****$83.99**
avg listing price — sweet spot $15–$100
**Review moat**
**Good****624**
avg incumbent reviews — the moat a new listing must climb
**Returns**
**Good****2.3%**
return rate — above 5% kills the launch gate
**Growth**
**Good****+28.9%**
90-day search growth — must beat 0% to launch
**Conversion**
**Good****4.2%**
search→purchase rate — share of searches ending in a sale
**Price range**
**Okay****$30.63–$299.58**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Quality gap**
**Okay****4.6★**
avg incumbent rating — lower means beatable quality
**Market size**
**Bad****$73K**
$73K/yr · 21K searches
**Competition**
**Bad****88%**
top-5 click share — a locked-up shelf
**Brand share**
**Bad****100%**
top-5 brand share — brand-locked demand
**Signals**[** High Price**](https://flapen.com/research/niches?market=us&signal=high_price "Avg price > $50")
According to Flapen's Amazon United States niche tracking, prosoco is a $73K/yr Amazon United States market (21K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Sep–Oct. Verdict: Skip it — 36/100.
Data updated Jul 27, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **prosoco market data**
- **Units sold / yr**
- **3K–3K**
- avg 100–250/product
- **Revenue / yr**
- **$210K–$252K**
- units × avg price
- **Conversion rate**
- **4.2%**
- **Avg BSR**
- **#144**
- **Page quality**
- **0%**
- **Prime**
- **67%**
- **Sponsored**
- **89%**
- **Out of stock**
- **5.3%**
- **Avg brand age**
- **94 months**
- **Avg seller age**
- **167 days**
## **Competition & brand share**
The top 5 products capture 88% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**4 **▼falling
**Sellers**
**15**
**Top-5 brand share**
**100%**
Top 20: 100%
**Top-5 click share**
**88%**
Top 20: 100%
**Open market**
**0%**
- ZIP System59% - Prosoco26% - POLYGUARD12% - Liquid Rubber4%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +28.9% search growth over the last 90 days.
1K600Spike '25Prime Day '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Sep, Oct · busiest ÷ quietest = 2.1×
[**Open Trend **](https://flapen.com/research/us/tools-home-improvement/prosoco/trend)
## **Top prosoco search terms**
- **liquid flashing**13K/yr+33.8%2.9% conv. - **zip liquid flashing**5K/yr+44.8%5.9% conv. - **liquid flash**3K/yr-6.9%3.8% conv. [**All search terms **](https://flapen.com/research/us/tools-home-improvement/prosoco/search-terms)
## **Top prosoco 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.
0%15%$11K30%$22K45%$33K60%$44K1101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 9 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**ZIP System Liquid Flashing - Fluid-Applied Sealant with STP Polymer - Professional-Grade - Weather Protection - Exterior Seal for Hard-to-Flash Surfaces - 10.3 oz Cartridge**ZIP System**$30.63**4.3★289 rev](https://www.amazon.com/dp/B0784Y7DHW) [2**PROSOCO FastFlash | Waterproof and Airtight Fluid-Applied Flashing Membrane - Trusted by Professionals (4)**Prosoco**$114.51**4.6★28 rev](https://www.amazon.com/dp/B0D74RHXCW) [3**Blue Barrier Liquid Flashing 2-Pack 20oz Sausage Tubes Weather-Resistant Air Barrier for Window and Door Installations Low VOC Made in The USA**POLYGUARD**$50.85**4.6★32 rev](https://www.amazon.com/dp/B0CHGMSQ77) [4**PROSOCO FastFlash | Waterproof and Airtight Fluid-Applied Flashing Membrane - Trusted by Professionals**Prosoco**$41.41**4.8★255 rev](https://www.amazon.com/dp/B00OBUFLCW) [5**ZIP System Liquid Flash Sausage Applicator - Professional-Grade Aluminum Barrel Caulk Gun - 18:1 Thrust Ratio - Rotating Barrel Applicator - 20 oz Sausage**ZIP System**$64.43**4.7★76 rev](https://www.amazon.com/dp/B082TN7YSD)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**PROSOCO FastFlash | Waterproof and Airtight Fluid-Applied Flashing Membrane - Trusted by Professionals (4)**Prosoco**$114.51**28 rev2y ago](https://www.amazon.com/dp/B0D74RHXCW) [**Blue Barrier Liquid Flashing 2-Pack 20oz Sausage Tubes Weather-Resistant Air Barrier for Window and Door Installations Low VOC Made in The USA**POLYGUARD**$50.85**32 rev2y ago](https://www.amazon.com/dp/B0CHGMSQ77) [**Prosoco Roller Grade FastFlash | Waterproof and Airtight Fluid-Applied Flashing Membrane - Trusted by Professionals (2 GAL)**Prosoco**$299.58**6 rev4y ago](https://www.amazon.com/dp/B09Z3FC4J7) [**ZIP System Liquid Flash Sausage Applicator - Professional-Grade Aluminum Barrel Caulk Gun - 18:1 Thrust Ratio - Rotating Barrel Applicator - 20 oz Sausage**ZIP System**$64.43**76 rev6y ago](https://www.amazon.com/dp/B082TN7YSD) [**ZIP System Liquid Flashing - Fluid-Applied Sealant with STP Polymer - Professional-Grade - Weather Protection - Exterior Seal for Hard-to-Flash Surfaces - 10.3 oz Cartridge**ZIP System**$30.63**289 rev8y ago](https://www.amazon.com/dp/B0784Y7DHW)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**ZIP System Liquid Flashing - Fluid-Applied Sealant with STP Polymer - Professional-Grade - Weather Protection - Exterior Seal for Hard-to-Flash Surfaces - 10.3 oz Cartridge**ZIP System**$30.63**4.3★**▲ 89%**](https://www.amazon.com/dp/B0784Y7DHW) [**PROSOCO FastFlash | Waterproof and Airtight Fluid-Applied Flashing Membrane - Trusted by Professionals**Prosoco**$41.41**4.8★**▲ 51%**](https://www.amazon.com/dp/B00OBUFLCW) [**Blue Barrier Liquid Flashing 2-Pack 20oz Sausage Tubes Weather-Resistant Air Barrier for Window and Door Installations Low VOC Made in The USA**POLYGUARD**$50.85**4.6★**▲ 15%**](https://www.amazon.com/dp/B0CHGMSQ77) [**ZIP System Liquid Flash Sausage Applicator - Professional-Grade Aluminum Barrel Caulk Gun - 18:1 Thrust Ratio - Rotating Barrel Applicator - 20 oz Sausage**ZIP System**$64.43**4.7★**▲ 15%**](https://www.amazon.com/dp/B082TN7YSD) [**PROSOCO FastFlash | Waterproof and Airtight Fluid-Applied Flashing Membrane - Trusted by Professionals (4)**Prosoco**$114.51**4.6★**— 4%**](https://www.amazon.com/dp/B0D74RHXCW)
**~~View all trending →~~**
## **What buyers say about prosoco**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**23%
*“Good product and cheap”*
**Advertised Vs Actual Product**15%
*“As advertised”*
**Value For Money**11%
*“It's well worth the money”*
**Water Resistance**10%
*“Great waterproofing, used to seal new home”*
**Adhesion/Stickiness**8%
*“has adhered well to my project”*
**Leak-Proof**8%
*“Fixing leaks”*
**Efficiency**6%
*“Works great”*
**Durability**5%
*“Durability”*
**Safety Standards**2%
*“this stuff is 100% seal”*
**Ease Of Use**2%
*“easier to work with than some other brands”*
### **What buyers complain about **
**Leak-Proof**17%
*“that I bought 26 yrs ago after it began leaking last year pretty badly from cracks”*
**Adhesion/Stickiness**14%
*“It did not stick or dry”*
**Quality-Overall**14%
*“Quality is poor”*
**Value For Money**12%
*“cost. Little expensive”*
**Color**5%
*“It did not stick or dry...came out cream grey colors instead of black.”*
**Durability**3%
*“Didnt last more than 2 weeks”*
**Strength**3%
*“Weak product”*
**Ease Of Cleaning**2%
*“Wear gloves or have a can of acetone to clean up your tools it can get a little messy”*
**Thickness**2%
*“The first batch I got seemed thicker”*
**Smell**2%
*“It has a smell”*
### **Top return reasons **
**Advertised Vs Actual Product**18%
**Value For Money**16%
**Leak-Proof**12%
**Color**11%
**Size-Overall**11%
**Functionality-Overall**6%
**Ease Of Use**6%
**Defective Material/Parts**4%
**Adhesion/Stickiness**3%
**Product Condition**2%
## **Common questions**
- **Is prosoco profitable to sell on Amazon United States?**
- The niche generates $73K/yr across 9 tracked products. 90-day search growth is +28.9%. Flapen's verdict: Skip it (36/100).
- **How competitive is the prosoco niche?**
- 4 brands and 15 sellers compete. The top 5 products take 88% of clicks and top 5 brands hold 100% of demand.
- **What do buyers complain about in prosoco?**
- Top complaints mined from reviews: Leak-Proof, Adhesion/Stickiness, Quality-Overall. The return rate is 2.3%.
- **When does demand for prosoco peak?**
- Demand peaks in Sep–Oct; the busiest month runs 2.1× the quietest.
- **What does it cost to enter the prosoco niche?**
- Listings span $30.63–$299.58; the average listing price is $83.99 (sweet spot $15–$100). The average incumbent carries 624 reviews — the moat a new listing must climb.
## **Related niches in Tools & Home Improvement**
- 73 [**solar outdoor lights**](https://flapen.com/research/us/tools-home-improvement/solar-outdoor-lights)$30.2M/yr+39.8%**Launch it**- 73 [**shower lamp**](https://flapen.com/research/us/tools-home-improvement/shower-lamp)$2.8M/yr+30.2%**Launch it**- 73 [**solar flowers**](https://flapen.com/research/us/tools-home-improvement/solar-flowers)$607K/yr+52.0%**Worth a look**- 73 [**american flag lights**](https://flapen.com/research/us/tools-home-improvement/american-flag-lights)$465K/yr+736.5%**Worth a look**- 73 [**solar fairy lights**](https://flapen.com/research/us/tools-home-improvement/solar-fairy-lights)$3.5M/yr+64.6%**Launch it**- 73 [**solar watering can with cascading lights**](https://flapen.com/research/us/tools-home-improvement/solar-watering-can-with-cascading-lights)$304K/yr+124.3%**Worth a look**[**All Tools & Home Improvement niches **](https://flapen.com/research/us/tools-home-improvement)