fluid film spray gun
Worth a lookShows a sweet-spot price point ($54.13 avg), but soft demand (-10.3% this quarter) keeps it on the watch list.
Avg price
Great$54.13avg listing price — sweet spot $15–$100
Returns
Great1.5%return rate — above 6% kills the launch gate
Review moat
Great321.04avg incumbent reviews — the moat a new listing must climb
Quality gap
Great4.2★avg incumbent rating — lower means beatable quality
Price range
Good$13.72–$149.94cheapest to priciest tracked listing — scored on the share inside $15–$100
Brand share
Good74%top-5 brand share — brands hold most of the demand
Market size
Good$292K$292K/yr · 154K searches
Conversion
Okay3.5%search→purchase rate — share of searches ending in a sale
Competition
Okay60%top-5 click share — leaders hold, buyers still browse
Growth
Bad-10.3%90-day search growth — must beat 0% to launch
Competition
The top 5 products take 60% of clicks — established leaders, but buyers still shop beyond them.Brands
16 falling
Sellers
73
Top-5 brand share
74%
Open market
22%
- Fluid Film24%
- InoKraft22%
- Generic12%
- TCP Global9%
- DurionAuto8%
- Master Airbrush5%
Product shelf
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
All 23 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
InoKraft Undercoating Spray Gun Kit with Suction Feed Cup 360 Flexible Wand & Straight Hose for Truck Bed Liner Underseal Rubberized Undercoating & Rust Proofing
InoKraft$47.304.5★461 rev
Fluid Film FFSG Spray Gun Applicator Kit
Fluid Film$122.094.4★326 rev
Complete FF Lanolin Undercoating Fluid Pro Undercoating Gun - 2 Wand Kit (3 W Quart Bottles)
Generic$149.944.6★6 rev
Undercoating Spray Gun with Suction Feed Cup 360 & Straight Spray Hoses for Truck Bed Liner Coating Rubberized Undercoat Rust Proofing (Gray)
DurionAuto$40.754.5★22 rev
TCP Global Air Undercoating Spray Gun with Gauge Suction Feed Cup & 2 Wands - 22 Long Flexible Extension Wand with Multi-Directional Nozzle - Sprayable Bed Liner Rubberized Truck Undercoating
TCP Global$36.733.8★1,576 rev
Newest
by launch dateUndercoating Spray Gun with Suction Feed Cup 360 & Straight Spray Hoses for Truck Bed Liner Coating Rubberized Undercoat Rust Proofing (Gray)
DurionAuto$40.7522 rev
Undercoating Spray Gun with Suction Feed Cup 360 Flexible Wand & Filter Screen Cover & Air Pressure Regulator Rubberized Coating Sprayer for Truck Bed Liner Rust Proofing and Chassis Protection
RIRC$41.3010 rev
InoKraft Undercoating Spray Gun for Truck Bed Liner Coating Rubberized Undercoat Rust Proofing (Basic Model)
InoKraft$31.4666 rev
ChgImposs Undercoating Spray Gun Kit 34 fl oz / 1 Liter Cup Fluid Film Rust Proofing Gun for Truck Bed Liner Car Underbody Coating Rubberized Protective Spray Tool with Hoses (Grey)
ChgImposs$31.254 rev
GS Undercoating Spray Gun Kit Undercoating Gun for Vehicles Truck Bed Liner Coating Rubberized Undercoat Car Rust Proofing Bedliner Under Coating Gun with Suction Feed Cup 360 Spray Hoses
GRACESELECT$40.578 rev
Trending
90-day click momentumUndercoating Spray Gun with Suction Feed Cup 360 & Straight Spray Hoses for Truck Bed Liner Coating Rubberized Undercoat Rust Proofing (Gray)
DurionAuto$40.754.5★
ChgImposs Undercoating Spray Gun Kit 34 fl oz / 1 Liter Cup Fluid Film Rust Proofing Gun for Truck Bed Liner Car Underbody Coating Rubberized Protective Spray Tool with Hoses (Grey)
ChgImposs$31.255.0★
Undercoating Spray Gun with Suction Feed Cup 360 Flexible Wand & Filter Screen Cover & Air Pressure Regulator Rubberized Coating Sprayer for Truck Bed Liner Rust Proofing and Chassis Protection
RIRC$41.303.8★
GS Undercoating Spray Gun Kit Undercoating Gun for Vehicles Truck Bed Liner Coating Rubberized Undercoat Car Rust Proofing Bedliner Under Coating Gun with Suction Feed Cup 360 Spray Hoses
GRACESELECT$40.573.5★
Complete FF Lanolin Undercoating Fluid Pro Undercoating Gun - 2 Wand Kit (3 W Quart Bottles)
Generic$149.944.6★
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -10.3% search growth over the last 90 days.Peak months: Sep, Oct, Nov · busiest ÷ quietest = 3.5×
Reviews
What buyers praise and complain about, mined from review topics.What buyers love
“Great kit and great product”
“Worth the money”
“Sprays on well with spray gun found here on Amazon”
“Worked well using wool wax”
“Worked as advertised”
“It works great on the rust”
“cleanup quicker than you might expect”
“it's been super reliable”
“which was very easy to do”
“Works great for fluid film”
What buyers complain about
“Wont spray at all”
“Not good quality you can do better”
“Broke immediately”
“the extension tube hardly works at all”
“No user manual”
“it did not fit well on the cans”
“Dirty”
“the rusty spots on the bed and bumper”
“Would not spray paint through tube with five holes”
“Leaks, cup does not stay tight, wands never worked”