Metal Roof Sealing

What You Need:

              Super Primer 5 gallon    Peel and Stick Seam Tape      Maximum-Stretch 5 gallonor    Iron Coat 5 gallon

Detailed Application Instructions

Products: Ames® Super Primer™,  Ames® Peel & Stick™ Seam Tape and (Ames® Maximum-Stretch® or Ames® Iron Coat™)


Ames® Maximum-Stretch® or Ames® Iron Coat™ can be applied with a paint brush, a push broom, a low nap roller with a long handle or a Commercial Airless Sprayer.  In addition, you will need Ames® Peel & Stick Seam Tape and scissors or a utility knife.  For larger commercial jobs, we recommend an airless sprayer with a 3/8 inch, 150 foot hose. Click Here for Sprayer Specifications


Be sure surfaces are clean and dry before the coating application. Read all label instructions before beginning. Always run a test patch first in an inconspicuous area to ensure that proper adhesion and drying occurs and the product works to your satisfaction. Seam tape joints and around vents with Ames’® Peel & Stick™ adhesive seam tape. Seam tape the cap or peak or the ridge line of the roof. Follow seam taping instructions.

Metal Roofs including Tin, Aluminum, Rusty Metal, Corrugated Metal, Fiberglass, Butler Buildings, Hangers and Factories:
Seam Tape where needed on roofs and gutters. You may also use Ames® Super Primer™ over rust to help with possible bleed through as well as any silver aluminum fibrous coating.  Super Primer™ has 10 pounds per square inch bonding capability to metal. Top coat with Ames® Maximum-Stretch®.


Pour the thick liquid coating out and spread 1-2 gallons of product liberally with a push broom or roller. Work the product until it is smooth and looks consistent in thickness. Move on after a few minutes so the product does not skin over or form a film which can create an unintended texture in the coating’s finished appearance.

Estimated Coverage:

Standard product coverage on a smooth surface is 100 sq. ft. per gallon per coat (est. 10 mil) but it varies per surface. More than one coat is always recommended. More coats equal longer life.

Weather & Drying Guidelines:

Ames® Maximum-Stretch®  is best applied between 50° to 90° F (10° to 32° C) on warm dry surfaces. Apply when the streets are dry, the sun is in the sky and no inclement weather is forecast. Starts to dry in 2-8 hours, depending on thickness of application and weather; cures in 24 hours. Low temperatures, high humidity and evening and morning dew will require increased drying/curing time.

Clean-up, Storage, and Disposal:

Clean tools and small spills with water. Store unused product in its original container, tightly sealed and protected from freezing. Dispose of this product in accordance with local, state, or federal requirements.

Products for a Metal Roof


Super Primer™

Peel & Stick Seam Tape

Peel & Stick™ Seam Tape

maximum stretch tote



Iron coat tote

Ames® Iron Coat™


Information Library

Contact Ames Research Laboratories

Mon-Fri 7 AM - 5 PM PT


Toll Free: 1-888-345-0809


Subscribe to our newsletter and get the latest product tips and updates.