Black Rubber R854056 1-1/2 in Slide-Out Wiper Seal - Durable RV Seal

In this review the Black Rubber R854056 is judged as a straightforward, no-frills replacement for RV slide-out wiper seals. It is aimed at RV owners and DIY maintenance people who need a durable, clip-on weather strip to keep out dust, water and noise. The single biggest reason to buy is its High Strength EPDM rubber construction with UV inhibitors, which provides resilient sealing and longevity compared with thinner, cheaper alternatives.

Key Features

• Material: High Strength EPDM rubber offers durable resistance to weathering and retains flexibility over time for reliable sealing.
• Fit: The R854056 is sized for 1-1/2 in slide-out gaps and provides a snug fit that reduces wind noise and prevents dust and water intrusion.
• Clip-On Base: The clip-on base design makes installation faster and reduces the need for complex tools or a second person when fitting long lengths.
• UV Protection: Built-in UV inhibitors extend service life by resisting sun-related degradation on exterior RV slide-outs.
• Length and Profile: Supplied in a 25 ft length with a 9/16 in cross section, it covers a full slide-out run for many RVs without multiple joins.
• Support: Includes 2 years of quality assurance plus free return and exchange for easier, worry-free replacement.

Who It's For

This seal is best for RV owners who perform routine maintenance and need a durable, factory-style replacement for a 1-1/2 in slide-out. It suits DIYers who prefer a clip-on installation method to avoid extensive adhesive work.

It is not ideal for owners who require a different cross-section or length beyond 25 ft without splicing, or those who need specialized adhesive backing that stuck immediately in every reported case; some customers reported adhesive tape adhesion issues and slight shortfall in length requiring trimming or overlap.

Pros & Cons

Pros

• Durable EPDM construction that resists UV and maintains flexibility.
• Clip-on base design simplifies installation and can be done by one person.
• Good value for a full 25 ft length that fits many slide-out runs and restores original function.
• Company backing with 2 years quality assurance and free return/exchange.

Cons

• Some users found the supplied adhesive tape did not stick reliably, so plan to have additional fasteners or adhesive on hand.
• A few customers noted the length ran short by about 3/8 in in some cases, which may require trimming or a small splice.

Specifications

Our Verdict

The R854056 is a practical, cost-effective replacement for most 1-1/2 in RV slide-outs and offers durable sealing thanks to EPDM rubber and UV inhibitors. Buy this if you want a clip-on, long-length seal that restores weatherproofing with minimal fuss; bring extra adhesive or plan a small splice if you need absolute precision in length.

Frequently Asked Questions

Will this fit my slide-out?
It is designed for a 1-1/2 in slide-out gap with a 9/16 in cross section; measure your existing seal to confirm fit.

Is the seal easy to install alone?
Yes, the clip-on base is meant for easy installation and many users reported installing it solo, though having basic tools and extra adhesive helps.

What if the adhesive tape does not stick?
Some customers reported tape adhesion issues; include extra adhesive or mechanical fasteners as a backup for secure installation.