Can I apply this to a painted smooth masonary wall?

I wouldn't think its an issue. I used it over a textured/painted wall and it worked great.

Works for non-woven wallpaper ??

This wallpaper adhesive did not work as heavy duty to me. It should work on any wallpaper. It goes on pretty wet. The old thing is you can move the paper and realign, if needed probably for a good 30 mins after you place it.

do I have to prime my wall first?

Just a thought, if it is new wallboard and if you think you might ever want to paint that wall it would be better to prime it so that the glue doesn't soak into the wallboard. Then when you take the wallpaper down you won't pull hunks of wallboard out.

Is this a vinyl adhesive

Not sure, I use this for heavier wallpaper and will never use anything but this ever. Its amazing!!!

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ROMAN Heavy Duty Clear Wallpaper Adhesive, Non-staining, Clear, PRO-838, (1 Gallon - 280 sq. ft.)

ROMAN Heavy Duty Clear Wallpaper Adhesive, Non-staining, Clear, PRO-838, (1 Gallon - 280 sq. ft.)

Product ID: 14470648

Details

Brand
Roman
Color
Clear
Item Form
Liquid
Material
Modified
Specific Uses For Product
Wallpaper

🎨Clear-drying, clean finish

💪Extra tack for heavyweight wallpaper

🖼️280 sq ft coverage/gal

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₩111948

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Sold byAmazon South KoreaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🖌️ Stick with the best—PRO-838 makes every wall a masterpiece!

HEAVYWEIGHT HERO - Engineered for medium to heavyweight wallpapers including commercial vinyl & wall carpet
PRECISION ALIGNMENT - Generous open time and excellent slip for perfect pattern matching and repositioning
FLAWLESS APPLICATION - Smooth spread via roller, brush, or pasting machine for professional results every time
PROUDLY AMERICAN MADE - Crafted in Illinois by ROMAN, a trusted name with 75+ years of adhesive expertise
UNMATCHED COVERAGE EFFICIENCY - Covers up to 280 sq ft per gallon—hang 5 double rolls with ease

ROMAN PRO-838 Heavy Duty Clear is a professional-grade, clear-drying wallpaper adhesive designed for medium to heavyweight wallcoverings like commercial vinyl and wall carpet. Offering up to 280 square feet of coverage per gallon, it ensures smooth application with excellent slip and open time for precise alignment. Made in the USA, this adhesive combines durability, ease of use, and a clean finish, making it the go-to choice for contractors and DIY pros aiming for flawless wallpaper installations.

Specifications

ASIN	B000I1VDPW
Best Sellers Rank	#7,715 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #5 in Wallpaper Adhesives
Brand Name	Roman
Color	Clear
Compatible Material	Wallpaper
Container Type	Pail
Customer Reviews	4.6 4.6 out of 5 stars (2,110)
Global Trade Identification Number	00017104113017
Included Components	Roman 011301 PRO-838 1 gal Heavy Duty Wallpaper Adhesive, Clear
Item Form	Liquid
Item Package Quantity	1
Item Type Name	Roman 011301 PRO-838 1 gal Heavy Duty Wallpaper Adhesive, Clear
Item Weight	16 ounces
Manufacturer	Roman Decorating Products
Material Type	Modified Starches
Model	011301
Number of Pieces	1
Part Number	11301
Specific Uses For Product	Wallpaper Installation
UPC	017104113017
Unit Count	128.0 Fluid Ounces
Viscosity Level	Medium
Volume	1 Gallons
Water Resistance Level	Not Water Resistant

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