Is black caulk profitable to sell on Amazon United States?

The niche generates $313K/yr across 17 tracked products. 4 of 4 products launched in the last 360 days are still selling. 90-day search growth is +9.8%. Flapen's verdict: Worth a look (54/100).

How competitive is the black caulk niche?

12 brands and 90 sellers compete. The top 5 products take 65% of clicks and top 5 brands hold 79% of demand.

What do buyers complain about in black caulk?

Top complaints mined from reviews: Ease Of Use, Ease Of Cleaning, Quality-Overall. The return rate is 0.9%.

When does demand for black caulk peak?

Demand is steady year-round — the busiest month runs 1.4× the quietest.

What does it cost to enter the black caulk niche?

Listings span $5.79–$24.93; the average listing price is $12.19 (sweet spot $15–$100). The average incumbent carries 1,723 reviews — the moat a new listing must climb.

black caulk

Worth a look

Shows searches that convert (13.8% search→purchase), but a concentrated shelf (top 5 take 65% of clicks) keeps it on the watch list.

Conversion

Incredible13.8%

search→purchase rate — share of searches ending in a sale

Returns

Incredible0.9%

return rate — above 5% kills the launch gate

Market size

Good$313K

$313K/yr · 186K searches

Avg price

Good$12.19

avg listing price — sweet spot $15–$100

Price range

Good$5.79–$24.93

cheapest to priciest tracked listing — scored on the share inside $15–$100

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Review moat

Okay1,723.41

avg incumbent reviews — the moat a new listing must climb

Brand share

Okay79%

top-5 brand share — brands hold most of the demand

Growth

Okay+9.8%

90-day search growth — must beat 0% to launch

Competition

Okay65%

top-5 click share — leaders hold, buyers still browse

According to Flapen's Amazon United States niche tracking, black caulk is a $313K/yr Amazon United States market (186K searches/yr). The top 5 brands hold 79% of demand. Verdict: Worth a look — 54/100.

Data updated Jul 8, 2026 · scored weekly · How we score niches

black caulk market data

Units sold / yr: 25K–30K; avg 1,500–2,000/product
Revenue / yr: $305K–$366K; units × avg price
Conversion rate: 13.8%
Avg BSR: #1,077
Page quality: 0%
Prime: 100%
Sponsored: 76%
Out of stock: 0.0%
Avg brand age: 58 months
Avg seller age: 165 days

Competition & brand share

The top 5 products take 65% of clicks — established leaders, but buyers still shop beyond them.

Brands

12 falling

Sellers

Top-5 brand share

79%

Top 20: 100%

Top-5 click share

65%

Top 20: 100%

Open market

17%

DAP44%
ADVANCEDSIL13%
OB18%
Permatex7%
PAULINN7%
professional soma fix4%
Open — no brand owns it (6 brands, 17%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +9.8% search growth over the last 90 days.

No pronounced peak months · busiest ÷ quietest = 1.4×

Open Trend

Top black caulk search terms

black caulk76K/yr +2.1%12.3% conv.
black caulking waterproof33K/yr +33.4%13.9% conv.
black silicone caulk32K/yr +12.6%14.0% conv.
black caulking14K/yr -4.9%11.7% conv.
silicone caulk black5K/yr +25.8%13.1% conv.
black caulk kitchen and bath6K/yr -9.5%9.6% conv.
black caulking waterproof outdoor5K/yr +72.1%16.9% conv.
matte black caulk3K/yr +8.8%2.8% conv.
black exterior caulk3K/yr +73.2%22.0% conv.
caulk black3K/yr +6.2%12.3% conv.

All search terms

Top black caulk 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.

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 17 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

DAP 7079818280 DYNAFLEX 230 Black Raw Building Material 10.1 oz

DAP$7.024.6★891 rev

DAP Dynaflex Ultra Advanced Exterior Sealant Black 10.1 Oz (7079818220)

DAP$8.684.7★483 rev

Black Silicone Sealant & Caulk Tube with Finishing Tool Weatherproof Flexible Strong Adhesion for Bathroom Roof Window and Automotive Sealing

ADVANCEDSIL$9.414.3★678 rev

OB1 Universal Caulk Sealant & Adhesive Black 10.1oz | Professional Grade Premium All-in-One Advanced Hybrid 3-in1 | Water Resistant Internal & External | Shrink Crack UV & Fade Resistant | 1 Cartridge

OB1$10.384.2★160 rev

Permatex 81158 Black Silicone Adhesive Sealant 3 oz. Tube Pack of 1

Permatex$5.794.6★11,710 rev

Newest

by launch date

SHIELDOM Silicone Sealant Adhesive Silicone Caulk with Finishing Tool 100% Waterproof Seal Shrink & Crack Proof Flexible Strong Adhesion for Automotive Bathroom Kitchen Windows 150ML/5Oz (Black)

SHIELDOM$15.5142 rev

4mo ago

OB1$10.38160 rev

7mo ago

Silicone Sealant 5oz No Caulking Gun Needed Flexible Adhesive Caulk 100% Waterproof UV Weather Resistant Crack Proof Sealant for Kitchen Bathroom Shower Window Auto Black

LUSTRIO$14.7565 rev

9mo ago

Black Silicone Sealant & Caulk Tube with Finishing Tool Weatherproof Flexible Strong Adhesion for Bathroom Roof Window and Automotive Sealing

ADVANCEDSIL$9.41678 rev

10mo ago

Black Silicone Caulk - Easy Squeeze Caulking Tube Silicone Sealant for Wood Kitchen Bathroom Sink Windows - Multi Purpose & Waterproof - 1.7 fl. oz (Black)

professional soma fix$10.35812 rev

1y ago

What buyers say about black caulk

What buyers praise and complain about, mined from review topics.

What buyers love

Quality-Overall21%

“the quality was consistent and excellent”

Efficiency8%

“It works well for small gaps or connection points around the house”

Adhesion/Stickiness8%

“Strong adhesive”

Ease Of Use7%

“Easy to use”

Advertised Vs Actual Product7%

“Works as it should”

Value For Money7%

“reasonably priced”

Durability5%

“Very durable”

Ease Of Cleaning5%

“helps give it a cleaner”

Material Quality4%

“the material comes out smoothly”

Color4%

“Great color”

What buyers complain about

Ease Of Use16%

“Not as easy to use”

Ease Of Cleaning15%

“Definitely not clean”

Quality-Overall10%

“Poor quality product”

Adhesion/Stickiness7%

“GREAT ADHESIVE, BAD CONTAINER”

Leak-Proof6%

“Tube leaks from bottom”

Color5%

“Don't choose the black color it doesn't look as good as your imagination ses it does”

Functionality-Overall4%

“ultimately did not function properly”

Hard Feel4%

“hard like a rock”

Thickness3%

“It was thick”

Value For Money2%

“not the most economical”

Top return reasons

Color21%

Advertised Vs Actual Product12%

Compatibility-Overall11%

Functionality-Overall8%

Adhesion/Stickiness8%

Value For Money7%

Leak-Proof7%

Size-Overall5%

Defective Material/Parts3%

Strength2%

Common questions

Is black caulk profitable to sell on Amazon United States?: The niche generates $313K/yr across 17 tracked products. 4 of 4 products launched in the last 360 days are still selling. 90-day search growth is +9.8%. Flapen's verdict: Worth a look (54/100).
How competitive is the black caulk niche?: 12 brands and 90 sellers compete. The top 5 products take 65% of clicks and top 5 brands hold 79% of demand.
What do buyers complain about in black caulk?: Top complaints mined from reviews: Ease Of Use, Ease Of Cleaning, Quality-Overall. The return rate is 0.9%.
When does demand for black caulk peak?: Demand is steady year-round — the busiest month runs 1.4× the quietest.
What does it cost to enter the black caulk niche?: Listings span $5.79–$24.93; the average listing price is $12.19 (sweet spot $15–$100). The average incumbent carries 1,723 reviews — the moat a new listing must climb.