EternaBond RoofSeal Tan 6 in x50 ft MicroSealant Tape - Durable RV

In this review of EternaBond RoofSeal Tan 6 in x50 ft MicroSealant Tape the bottom line is simple: this is a one-step repair tape aimed at RV owners, boaters and maintenance pros who need a durable, waterproof and UV-stable seam seal without messy adhesives. The reviewer found the tape most valuable for sealing seams, patching drains and repairing metal or fiberglass surfaces where a flexible, weatherproof barrier matters. Its strength lies in the aluminum backing plus advanced MicroSealant that bonds to common roof materials and stays flexible in very low temperatures.

Key Features

• Multi-use compatibility: Bonds to EPDM, TPO, Hypalon, aluminum, galvanized steel, wood and fiberglass so it works across roofs, trailers and small boats.
• No additional sealing required: The aluminum backing and MicroSealant layer form a waterproof, airtight barrier without primers or extra sealants.
• Low temperature flexibility: Remains flexible down to -57C (-70F) which helps prevent cracking in cold climates.
• UV-stable backing: The durable, UV-resistant face resists deterioration from sun exposure and fluctuating temperatures.
• One-step application: Sticky tape application avoids trays, solvents and complex tools for quick, clean repairs.
• Durable surface protection: Designed as an abrasion- and corrosion-resistant coating where long-lasting coverage is required.

Who It's For

The tape is best for RV and trailer owners, maintenance crews and boat owners needing a fast, long-lasting patch that bonds to a wide range of substrates. It suits anyone who prefers a straightforward, mechanical application instead of brush-on sealants or multi-part adhesives.

It is less appropriate for large roofing contractors who require bulk liquid membranes or for repairs that need structural reinforcement rather than a surface seal. If a substrate is heavily contaminated with oil or loose rust, surface prep beyond simple cleaning may be required.

Pros & Cons

Pros

• Creates a waterproof, airtight seal without additional sealants for neat, immediate repairs.
• Works on many materials including metal, fiberglass and common roof membranes, making it versatile.
• UV-stable and stays flexible in extreme cold, reducing risk of future cracking.
• Easy one-step application avoids solvents and messy cleanup.

Cons

• Some users report mixed adhesion results depending on surface prep and substrate condition, so results can vary.
• Price is higher than commodity tapes, which some buyers may find costly for large-area work.

Specifications

Brand	EternaBond
Size	6 in x50 ft
Total thickness	35 mil
Backing	Aluminum with MicroSealant
Temperature flexibility	Remains flexible to -57C (-70F)
Primary uses	RV roofs, metal buildings, boats, drain pans

Our Verdict

For small to medium roof and seam repairs the EternaBond RoofSeal 6 in x50 ft tape is a practical choice: it delivers a durable, waterproof and UV-stable finish with minimal fuss. Owners who value quick, long-lasting sealing on varied surfaces will find it good value despite a higher upfront cost, provided they prepare the surface properly for best adhesion.

Frequently Asked Questions

Will this tape stick to fiberglass?
Yes, the MicroSealant formula bonds to fiberglass as well as aluminum, wood and common roof membranes when surfaces are clean.

Do you need extra sealant after application?
No, the aluminum backing with MicroSealant creates a waterproof, airtight barrier and does not require additional sealant.

Is it UV resistant for roof exposure?
Yes, the tape features a UV-stable backing designed to withstand direct sun and fluctuating temperatures.