1gal5500CODE: RS088


Crossco 5500 is a water-base 100% Acrylic elastomeric sealer with a single component, high solids and high performance to waterproof roof and walls. Crossco 5500 is a high performance product resists cracking and peeling, while offering tremendous durability, and long term life. The coating provides an excellent, highly protective barrier which reflects the sun's heat and destructive UV rays. It expands and contracts with the roof's movement to resist damage.

Available in: 1 US GAL, 5 US GAL


  • 100% acrylic elastomeric
  • Change from blue to ultra white
  • Fast dry
  • Reflects UV rays and reduces the internal temperature
  • Reduce energy costs.
  • Energy Star
  • CRRC Rate Product
  • Miami Dade County Product Control Approved NOA No; 11-0607.03 Expiration Date: 1/26/17


For waterproofing and protect a many roofs, in a good condition, such as: polyurethane foam roof, concrete, galvanized metal, EPDM membranes and acrylic elastomerics. Crossco 5500 ™ reflects sunlight and reduces the internal temperature and reduce energy costs. Energy savings may vary based on geographic location and the individual characteristics of the structure. Contact Max Chemical, Inc. at 1-888-782-7937 for more information.


Make sure that all edges are completely seal and repair including parapet, beams, columns and walls. The reflectivity of any roof sealer product can increase or decrease depending the maintenance of the product, the age and accumulation of dirt or germs. Some materials are not compatible with this product. Apply one coat every five years to maintain the lifetime warranty. It should not be applied to fiber cement shingles, slate, clay tiles, metal and wood.



Cleaning: ensure the roof is clean, wash the roof with water pressure machine and a mild detergent to remove all loose particles such as; gravel, dust, old sealer, grease, wax and oil. Remove the fungus, silt, mildew and algae with a mixture of water and Crossco ® Crosscrete ™; scrub the surface with a brush. Be sure to rinse the area well and let dry completely.

Repair cracks and joints: make sure all the cracks, joints, and all stationary objects such as; sanitary pipe, legs of antenna, anchors, glass blocks, and eaves are repaired. Apply Crossco ES2000 Crack Filler and fiberglass mesh, with a spatula, over cracks, seams, joints and around stationary objects at 2 inches on each side. Let dry 24 hours before applying sealer.

Areas with pounding water: Crossco 5500 is super resistant in accumulate water areas but that area with this condition it must be repair. In areas where accumulate water for more than 48 hours add new drains or use other form of correction. For correct this area use CROSSCO CROSS-QUICK, follow the product instruction when used. When the accumulated water evaporates completely dirt particles remain in the roof and causing excessive dirt. If you don't correct this area with accumulates water you need to apply one coat of Crossco 5500 every year.

APPLICATION METHOD: Choose warn, sunny day. Does not apply it after 3: 00 PM. or at low temperatures. Apply only at temperature above 50 ° F. Be sure to protect the roof for the rain at least 6 hours after applied. Apply with a roller or a unit of pumping without air. Place product on the surface and spread evenly to the suggested rate. Make sure that the edges are completely seal. Some materials are not compatible with this product. Dry time depends on the thickness, humidity and temperature. Do not walk on the sealer before 24 hours after applied and apply in opposite directions. Do not dilute the product. Clean the equipments with soap and water.Apply about the suggest application rate. Apply a base coat at a minimum rate of 65 sq.ft. per gallon and a finish coat at a rate of 65 sq. ft. per gallon.

Concrete roofs: Repair holes or any weakened area of the surface with a good quality cement. Paint over the area to be repair with Crossco ® Permabond Premium ™ and let dry. Add a gallon of Crossco ® Acryl B-60 - A ™ for each 50 pounds of cement and mix; apply the mixture and let it dry. Repair cracks and areas with stagnant water. Apply two coats of Crossco ® 5500 ™.

Metal: Remove the rust with Crossco ® Rust Off ™. Replace the loose screws and cover the old with Crossco ES2000 Crack Filler. Let dry and apply two coats of sealer waiting 24 hours between layers.

Polyurethane foam: Foam must be in good condition. Apply two coats of Crossco 5500 waiting 24 hours between coats.

Built-Up: Remove all the loose gravel, clean the roof and repair cracks with Crossco ES2000 Crack Filler and fiberglass mesh. Apply two coats of Crossco ® 5500 ™. Wait 24 hours between coats.

Asphalt roofs: Clean the surface. Be sure to remove all the dirty, oil and grease. Repair the cracks. Do not use in new or fresh asphalt. About asphalt shingles, make sure that all edges are completely seal and repair. Apply two coats of Crossco 5500. Wait 24 hours between coats.

APLICATION RATE: Apply a base coat at a minimum rate of 65 sq.ft. per gallon and a finish coat at a rate of 65sq.ft. per gallon  Application rate may vary depending on the porosity of the surface. Calculate the amount of necessary pails; divide the area of the surface between 325 and multiply the result by two. A pail is equal to five gallons.

To maximize reflectance as long as possible, the roof was sealed should be kept clean and free of leaves, dirt or any foreign material. Clean your roof annually with a fine hair brush and house normal water pressure. Attentions the areas with pounding water because required additional maintenance. Apply one coat every five years for maintain the lifetime warranty.


  • Appearance: Blue liquid
  • Solids: <60%
  • Application rate: 60-65 sq.ft/gal
  • Specific gravity: 1.47
  • Wt/gal: 12.28 lbs./gal
  • pH: 9-10
  • Warranty: Lifetime

For chemical emergency only, call Chemtrec 1- 800-424-9300
The manufacturer’s liability in connection with the sale of this product extends only to the replacement price.

To request information about MSDS please contact us here

Contact Us

Max Chemicals
Plant & Warehouse La Brisa No. 6
Urb. Sabana Llana, Río Piedras, 00924
Phone: (787)765-6100
Fax: (787)753-1735

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