does this work on canvas?

I would try it - I used it on my upholstered couch

Will it remove the blue chalk stains on carpet that came from sub floors?

Probably not, it will just stain the carpet and create a permanent spot. I do not recommend this cleaner.

No. This product is slightly pH basic.

Will this work on a velvet couch?

Hello If the couch is safe to clean with water then, yes, you can use this cleaner. We always suggest doing a test spot first. Email us at cs@gotrinova.com with any other questions, I am happy to help.

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Astounding Spot Remover - Spot Cleaner for Carpet and Upholstery, Cleans Stains on Couch, Sofa, Fabric & More Removes Red Wine & Coffee Stains with Ease - 18 fl oz

Product ID: 105252512

Details

Brand
TriNova
Item Form
Spray
Material Feature
Clean
Scent
Unscented
Specific Uses For Product
Carpet Rug

💪Professional-strength formula

⏱️Instant stain action

🛋️Safe on upholstery & fabric

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$49.81

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Sold byAmazon USADelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

✨ Spotless living, zero compromises 🧼

INSTANT SPOT SAVIOR - Apply immediately to prevent stains from setting—no bulky machines needed.
LOW ODOR HIGH IMPACT - Enjoy a clean home without harsh chemical smells disrupting your vibe.
VERSATILE SURFACE HERO - Safe and effective on carpets, sofas, rugs, mattresses, and even laundry pre-treatment.
POWERFUL STAIN ANNIHILATOR - Eradicates red wine, coffee, pet urine & more with professional-grade strength.
TRUSTED SATISFACTION GUARANTEE - Backed by TriNova’s 100% refund promise—clean confidently or your money back.

The TriNova Astounding Spot Remover is an 18 fl oz professional-strength spray designed to quickly and effectively remove tough stains like red wine, coffee, pet urine, ink, and more from carpets, upholstery, and fabric surfaces. Its low-odor, acid-based formula is safe for most water-safe materials and doubles as a powerful laundry pre-treater. Trusted by thousands with a 4.3-star rating and a 100% satisfaction guarantee, it’s the go-to solution for instant, hassle-free stain removal without bulky equipment.

Specifications

ASIN	B07GG2BKLK
ASIN	B07GG2BKLK
Best Sellers Rank	#138,434 in Health & Household ( See Top 100 in Health & Household ) #77 in Household Carpet Spot Cleaning Sprays
Brand Name	TriNova
Contains Liquid Contents?	Yes
Customer Reviews	4.3 4.3 out of 5 stars (890)
Date First Available	August 13, 2018
Is Discontinued By Manufacturer	No
Item Form	Spray
Item Volume	18 Fluid Ounces
Item Weight	18 Ounces
Item model number	33541
Manufacturer	Merchant: 'Gold Eagle Company' / Amazon: 'TriNova'
Manufacturer	Merchant: 'Gold Eagle Company' / Amazon: 'TriNova'
Material Features	Clean
Material Type Free	No_Material_Type_Free
Model Number	33541
Number of Items	1
Package Dimensions	10.71 x 4.72 x 2.95 inches; 1.13 Pounds
Part Number	33541
Scent	Unscented
Size	18 Fl Oz (Pack of 1)
Special Features	Low Odor
Special Ingredients	acids
Specific Uses For Product	Carpet, Rug, Upholstery
Surface Recommendation	Fabric
UPC	073905335416
Unit Count	18.0 Fluid Ounces

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