---
product_id: 400935461
title: "PRO-999 Rx-35 Wallpaper Primer and Sealer - Bonding Primer for Wallcoverings and Home Improvement, Water-based - 1 Gallon, Clear"
brand: "roman"
price: "€ 312.99"
currency: EUR
in_stock: true
category: "Roman"
url: https://www.desertcart.gr/products/400935461-pro-999-rx-35-wallpaper-primer-and-sealer-bonding-primer
store_origin: GR
region: Greece
---

# 3-hour dry time Water-based, low odor 450 sq ft coverage PRO-999 Rx-35 Wallpaper Primer and Sealer - Bonding Primer for Wallcoverings and Home Improvement, Water-based - 1 Gallon, Clear

**Brand:** roman
**Price:** € 312.99
**Availability:** ✅ In Stock

## Summary

> 🖼️ Prime Like a Pro, Finish Like a Boss

## Quick Answers

- **What is this?** PRO-999 Rx-35 Wallpaper Primer and Sealer - Bonding Primer for Wallcoverings and Home Improvement, Water-based - 1 Gallon, Clear by roman
- **How much does it cost?** € 312.99 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/400935461-pro-999-rx-35-wallpaper-primer-and-sealer-bonding-primer)

## Best For

- roman enthusiasts

## Why This Product

- Trusted roman brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Tough on Imperfections:** Seals torn drywall, popcorn ceilings, and textured surfaces for flawless adhesion
- • **Maximize Your Wall Prep:** Covers up to 450 sq ft per gallon for efficient, large-scale projects
- • **Trusted Industry Leader:** Roman’s PRO-999 backed by 75+ years of innovation and professional installer approval
- • **Fast-Track Your Renovation:** Dries to a clear matte, tacky finish in just 3 hours—ready for wallpaper or paint
- • **Clean & Comfortable Application:** Water-based formula with low odor and no splatter for stress-free use

## Overview

Roman PRO-999 Rx-35 is a premium water-based wallpaper primer and sealer designed for professional-grade wall preparation. It covers up to 450 square feet per gallon, dries clear with a matte, tacky finish in 3 hours, and excels on porous and textured surfaces including torn drywall and popcorn ceilings. Low odor and easy cleanup make it ideal for DIY and commercial projects alike. Trusted by pros for over 75 years, this mildew-resistant, non-toxic primer ensures superior adhesion and a flawless finish every time.

## Description

ROMAN PRO-999 Rx-35 Problem Solving Primer seals torn drywall to create a wall surface that can be floated, spackled, painted or hung with wallpaper. Great for DIY projects. Use as a primer over skim coats, spackling and/or mud joints. This is the perfect primer for sealing drywall, contractor’s flat paint and old wallpaper waste residue. Works on typically problematic surfaces like textured walls and popcorn ceilings. Dries with slight residual tack, enhancing adhesion of wallpaper. Water based with low odor and no splatter that dries with a clear-matte, tacky finish after 3 hours. Avoid freezing; store upright in a cool, dry place. Each order includes 1-gallon of PRO-999 that covers approximately 400 square feet depending on application and comes with a 1-year limited warranty. Providing quality products for over 75 years, ROMAN's brands are rated number one by professional wallpaper installers. Known as the leader in the industry, ROMAN was the first to introduce pre-mixed wallcovering adhesives, wallcovering primers, and many other innovative products in the wallcovering industry that is a standard on store shelves today.

## Features

- IDEAL DRYWALL PRIMER - ROMAN Clear Primer is excellent for priming over torn or bare drywall and most other porous surfaces. Ready to hang wallcoverings after approximately 3 hours dry time.
- SEALS AND PRIMES - PRO-999 Wallpaper Sealer and Primer dries tacky and works for joint compound, spackling, and skim coats. This clear primer is ideal for popcorn ceilings and textured surfaces.
- EASY TO USE - No matter what your project or skill level is, ROMAN Wallpaper Primer will yield superior performance. The low odor, no splatter, and easy clean up with water formula makes it perfect for anyone to use.
- DURABLE - PRO-999 Sealer/Primer is specifically formulated to dry with a clear matte finish and slight residual tack. It offers approximately 400-450 square feet of durable coverage per gallon.
- PREMIUM QUALITY - ROMAN Products has a long-standing successful record in personal and commercial construction projects. Our premium non-toxic wallpaper primer works on most surfaces and is easy to apply, protects the wall surface, and prevents splatter and odor.
- Covers approximately 450 square feet per gallon
- Dry Time: Minimum dry time is 3 hours. Optimum dry time is 12 hours. Low temperature, high humidity and poor ventilation will slow down the drying process.
- VOC: < 25 grams/liter
- Made in USA

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B005MUEQGW |
| Age Range Description | Adult |
| Brand Name | Roman |
| Color Code | FFFFFF |
| Colour | Clear |
| Container Type | Pail |
| Country of Origin | USA |
| Coverage | Approx. 350-450 square feet per gallon, depending on the porosity and texture of the surface |
| Customer Reviews | 4.5 4.5 out of 5 stars (265) |
| Dry Time In Hours | 3 |
| Finish Type | Matte |
| Full Cure Time | 3 Hours |
| Global Trade Identification Number | 00017104169014 |
| Indoor Outdoor Usage | Indoor |
| Is Waterproof | False |
| Item Form | Liquid |
| Item Type Name | wallpaper |
| Item Volume | 1 Gallons |
| Manufacturer | 0 |
| Model Name | PRO-999 |
| Model Number | 16901 |
| Paint Type | Water-based |
| Part Number | 16901 |
| Size | 128 Fl Oz (Pack of 1) |
| Special Features | Mildew Resistant, Non Toxic |
| Specific Uses For Product | Interior |
| Surface Recommendation | Walls |
| UPC | 017104169014 |
| Unit Count | 128.0 Fluid Ounces |
| Water Resistance Level | Water Repellent |

## Product Details

- **Brand:** Roman
- **Colour:** Clear
- **Finish Type:** Matte
- **Item Volume:** 1 Gallons
- **Size:** 128 Fl Oz (Pack of 1)

## Images

![PRO-999 Rx-35 Wallpaper Primer and Sealer - Bonding Primer for Wallcoverings and Home Improvement, Water-based - 1 Gallon, Clear - Image 1](https://m.media-amazon.com/images/I/81vLosRhHoL.jpg)

## Questions & Answers

**Q: How long to set before I can wallpaper over it?**
A: 30-45 minutes until it dries and becomes tacky.

**Q: Can I use acrylic paint on top of Roman 999?**
A: yes

**Q: What is the dry time?**
A: To get the desired result ie. protect the surface and get increased slip and slide, let it dry overnight.  However, in a pinch, putting box fans on the area will generally expedite drying time (3+ hours)and still allow the sealer do what it does so well

**Q: Will this work for 60 grit sanded down old formica dinner table that will be top coated with Behr paint and primer and then stonecoat epoxied?**
A: Hi Jim, PRO-999 Rx-35 is formulated to seal porous surfaces like drywall and joint compound. As Formica is a non-porous, sealed surface, PRO-999 may not be the best primer option for this project.

## Frequently Bought Together

- Roman PRO-999 Rx-35 Wallpaper Primer and Sealer - Bonding Primer for Wallcoverings and Home Improvement, Clear, Water-based - 1 Gallon (400 Sq. Ft.)
- Roman PRO-880 Wallpaper Adhesive & Paste for Any Wallcovering - Ultra Clear Strippable, 1 Gallon(330 sq. ft)
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*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-11-15*