---
title: "Hylomar — $39K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/automotive/hylomar"
last_updated: "2026-08-10T21:45:37.769Z"
locale: en
meta:
description: "Niche score 35/100 · $39K/yr market · 20K searches/yr · $22.09 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 35/100 · $39K/yr market · 20K searches/yr · $22.09 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Hylomar — $39K/yr Amazon US Niche (2026) - Flapen"
---
# **hylomar**
**Skip it**
Brand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Market size 10Growth 32Conversion 82Competition 13Returns 64Price range 74Avg price 93Brand share 0Review moat 24Quality gap 30
**Avg price**
**Great****$22.09**
avg listing price — sweet spot $15–$100
**Conversion**
**Great****8.8%**
search→purchase rate — share of searches ending in a sale
**Price range**
**Good****$6.87–$37.87**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Returns**
**Good****2.5%**
return rate — above 5% kills the launch gate
**Growth**
**Okay****+5.9%**
90-day search growth — must beat 0% to launch
**Quality gap**
**Okay****4.6★**
avg incumbent rating — lower means beatable quality
**Review moat**
**Bad****5,441.9**
avg incumbent reviews — the moat a new listing must climb
**Competition**
**Bad****84%**
top-5 click share — a locked-up shelf
**Market size**
**Bad****$39K**
$39K/yr · 20K searches
**Brand share**
**Bad****100%**
top-5 brand share — brand-locked demand
**Signals**[** Low Review Barrier**](https://flapen.com/research/niches?market=us&signal=low_review_barrier "Top brand's reviews < 500")
According to Flapen's Amazon United States niche tracking, hylomar is a $39K/yr Amazon United States market (20K searches/yr). The top 5 brands hold 100% of demand. Verdict: Skip it — 35/100.
Data updated Jul 8, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **hylomar market data**
- **Units sold / yr**
- **2K–3K**
- avg 250–500/product
- **Revenue / yr**
- **$44K–$55K**
- units × avg price
- **Conversion rate**
- **8.8%**
- **Avg BSR**
- **#698**
- **Page quality**
- **0%**
- **Prime**
- **50%**
- **Sponsored**
- **50%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **86 months**
- **Avg seller age**
- **172 days**
## **Competition & brand share**
The top 5 products capture 84% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**5 **▲rising
**Sellers**
**38**
**Top-5 brand share**
**100%**
Top 20: 100%
**Top-5 click share**
**84%**
Top 20: 100%
**Open market**
**0%**
- Hylomar56% - Valco Cincinnati22% - Silver Seal11% - HOMAR7% - Proper Spec4% - Open — no brand owns it (0%)
## **Demand**
Weekly Amazon search volume, last 22 weeks — +5.9% search growth over the last 90 days.
600400Spike '26Feb '26Mar '26Mar '26Apr '26May '26May '26Jun '26
[**Open Trend **](https://flapen.com/research/us/automotive/hylomar/trend)
## **Top hylomar search terms**
- **hylomar**10K/yr+3.3%5.8% conv. - **hylomar blue**7K/yr+16.8%12.8% conv. - **hylomar sealant**3K/yr-13.4%6.1% conv. [**All search terms **](https://flapen.com/research/us/automotive/hylomar/search-terms)
## **Top hylomar 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%$6K30%$12K45%$18K60%$23K101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 10 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Hylomar F/HMMS00C/040G 40g Universal Blue**Hylomar**$17.45**4.5★41 rev](https://www.amazon.com/dp/B0064M6A6G) [2**Valco Cincinnati 71283 Hylomar Blue Gasket Marker and Thread Sealant Tube with Nozzle - 100 Grams**Valco Cincinnati**$18.72**4.8★560 rev](https://www.amazon.com/dp/B00CFH9GZG) [3**Silver Seal Hylomar Universal Jointing Compound (6.9 oz. Aerosol)**Silver Seal**$31.54**4.6★59 rev](https://www.amazon.com/dp/B00XLWV5ZI) [4**Hylomar HUBRA01 Polyurethane Sealant 200 mL Aerosol Spray Can**Hylomar**$37.87**4.8★31 rev](https://www.amazon.com/dp/B0086AJ75U) [5**Proper Spec Set x2 Hylomar Universal Blue Gasket Sealer with Nozzle 71283 RTC3347 100g Tube**Proper Spec**$34.32**4.8★47 rev](https://www.amazon.com/dp/B016UF2O0M)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**HOMAR No Tie Shoelaces for Adults & Kids Elastic Shoe Laces Strech Tieless Shoe Strings 180cm (71 inches) - Pure Black**HOMAR**$6.87**4,711 rev3y ago](https://www.amazon.com/dp/B0C5HYKFKH) [**Hylomar Universal Blue Non-Setting Sealant Silicone Jointing Compound 3.5oz**Hylomar**$22.00**116 rev7y ago](https://www.amazon.com/dp/B07NJHZJQQ) [**Proper Spec Set x2 Hylomar Universal Blue Gasket Sealer with Nozzle 71283 RTC3347 100g Tube**Proper Spec**$34.32**47 rev7y ago](https://www.amazon.com/dp/B016UF2O0M) [**Silver Seal Hylomar Universal Jointing Compound (6.9 oz. Aerosol)**Silver Seal**$31.54**59 rev8y ago](https://www.amazon.com/dp/B00XLWV5ZI) [**Silver Seal Hylomar Advanced Formulation (3 oz. Tube)**Silver Seal**$19.15**24 rev8y ago](https://www.amazon.com/dp/B00XLWUVJY)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**HOMAR No Tie Shoelaces for Adults & Kids Elastic Shoe Laces Strech Tieless Shoe Strings 180cm (71 inches) - Pure Black**HOMAR**$6.87**4.2★**▲ 215%**](https://www.amazon.com/dp/B0C5HYKFKH) [**HOMAR No Tie Shoelaces for Kids and Adults Stretch Silicone Elastic No Tie Shoe Laces**HOMAR**$7.62**4.1★**▲ 215%**](https://www.amazon.com/dp/B0186Z5QAO) [**Hylomar F/HMMS00C/040G 40g Universal Blue**Hylomar**$17.45**4.5★**▲ 58%**](https://www.amazon.com/dp/B0064M6A6G) [**Silver Seal Hylomar Universal Jointing Compound (6.9 oz. Aerosol)**Silver Seal**$31.54**4.6★**— 5%**](https://www.amazon.com/dp/B00XLWV5ZI) [**Hylomar Universal Blue Non-Setting Sealant Silicone Jointing Compound 3.5oz**Hylomar**$22.00**4.8★**— 5%**](https://www.amazon.com/dp/B07NJHZJQQ)
**~~View all trending →~~**
## **What buyers say about hylomar**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Ease Of Use**18%
*“Easy use”*
**Durability**13%
*“They are durable”*
**Quality-Overall**13%
*“No complaints”*
**Leak-Proof**10%
*“it actually seals”*
**Size-Overall**7%
*“The result is a much more comfortable fit”*
**Advertised Vs Actual Product**6%
*“As,described & shown”*
**Value For Money**6%
*“good price”*
**Stretchability/Expandability/Elasticity**5%
*“bind well elastically”*
**Pain Relief-Overall**4%
*“Saves my back”*
**Efficiency**4%
*“It works”*
### **What buyers complain about **
**Durability**19%
*“Eventually break”*
**Size-Overall**14%
*“It doesnt fit”*
**Strength**11%
*“Fragile and break easy”*
**Strap/String Quality**10%
*“The tightener that keeps the strings taut broke within 2 weeks of using”*
**Rubber Quality**9%
*“They can be a bit difficult to insert because the rubber”*
**Assembly/Installation**6%
*“Difficult to install”*
**Stretchability/Expandability/Elasticity**5%
*“If you have a narrow foot these elastic bands are not tight or small enough”*
**Heating**5%
*“Once it got hot”*
**Ease Of Use**5%
*“Could not use”*
**Flexibility**2%
*“They popped out due to flexibility”*
### **Top return reasons **
**Size-Overall**17%
**Functionality-Overall**14%
**Compatibility-Overall**11%
**Material Quality**9%
**Color**7%
**Advertised Vs Actual Product**6%
**Ease Of Use**5%
**Stretchability/Expandability/Elasticity**5%
**Rubber Quality**3%
**Defective Material/Parts**3%
## **Common questions**
- **Is hylomar profitable to sell on Amazon United States?**
- The niche generates $39K/yr across 10 tracked products. 90-day search growth is +5.9%. Flapen's verdict: Skip it (35/100).
- **How competitive is the hylomar niche?**
- 5 brands and 38 sellers compete. The top 5 products take 84% of clicks and top 5 brands hold 100% of demand.
- **What do buyers complain about in hylomar?**
- Top complaints mined from reviews: Durability, Size-Overall, Strength. The return rate is 2.5%.
- **What does it cost to enter the hylomar niche?**
- Listings span $6.87–$37.87; the average listing price is $22.09 (sweet spot $15–$100). The average incumbent carries 5,442 reviews — the moat a new listing must climb.
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