Please ensure you’ve read and understand the proper use, limitations and safety precautions associated with each product via its technical data sheet, safety data sheet or specification document(s) before proceeding.
Hulk MBS® (Magnesium Board Sealer) by Hulk Systems Inc.
Solvent based Magnesium Board Sealer. For use with all magnesium board surfaces.
Application
For all magnesium board surfaces, sealing the substrate with HULK: MBS® is a requirement where air and/or moisture release may cause pinhole or blister problems to occur in the applied membrane.
DO NOT – Never apply Hulk MBS® to any foam substrate or surface. Sealer magnesium surfaces is required to stabilize the boards, remove trapped air/vapor, from the substrate and promote a better bond with the substrate. Hulk MBS® can also be applied to concrete substrates if deemed necessary and will be ready to coat over between 10-30 minutes depending on the atmospheric conditions. If a sealer or primer is not deemed necessary, then delete this section. The mock-up will determine whether a primer is necessary for the installation.
- Consult technical documents, including Technical Data Sheet (TDS) and Safety Data Sheet (SDS) for HULK MBS® prior to use and ensure all safety, health, environmental, and personal protection equipment requirements are understood. Technical Documents are readily available upon request or online at www.hulksystem.com.
- Ensure all required PPE is being used by the applicator onsite including but not limited to skin protection, gloves, eye protection, NIOSH approved respirator, and proper mechanical ventilation when indoors. Fumes (off-gasses) should be directed outdoors and away from any points of possible ignition. ONLY USE in well ventilated areas.
- Condition all components to 60º – 70º F (16º – 21º C) for 24 hours prior to use. DO NOT apply sealer in temperatures exceeding 86º F (30º C) as it is both flammable and combustible at high temperatures. Ideal application temperature is between 50º – 75º F (10º – 24º C)
- DO NOT use Hulk MBS® around sources of flame, spark, or ignition.
- No mixing is necessary. Apply Hulk MBS® with a short nap, lint free roller or a solvent resistant low-pressure sprayer at an approximate thickness 7 mils WFT (wet film thickness) and coverage rate of 250 ft.2 (23.2 m2) per gallon (6.1 m2/L) providing a uniform coverage over the substrate. Recommended tip size for spray applications is a 0.017” – 0.021” orifice with a 10 inch or greater fan size to prevent fingering. Example: 517 tip size or greater.
- DO NOT attempt to back-roll.
- Allow Hulk MBS® to become tack-free prior to the application of the fluid applied waterproofing membrane, which should take no longer than 30 – 120 minutes dependent on environmental conditions.
- The maximum re-coat window should not exceed 72 hours before applying either additional coats of Hulk MBS® or Hulk WP®