Product Description

Maroo Bituminous Weatherproofing Mastic is a professional-grade, cold-applied, bitumen-based sealant specially formulated to protect a wide range of surfaces from moisture, water ingress, and harsh weather conditions. Engineered for superior adhesion and long-lasting performance, it’s the go-to solution for roof repairs, foundation sealing, wall protection, and concrete waterproofing.

This versatile mastic provides a flexible, durable, and weather-resistant barrier that effectively seals cracks, joints, and gaps. Ideal for both horizontal and vertical applications, Maroo Bituminous Mastic adheres strongly to concrete, brick, asphalt, metal, and roofing membranes — even in damp conditions.

Its non-sagging, paste-like consistency allows easy application with a trowel or putty knife, while its high elasticity accommodates building movements, expansions, and vibrations without cracking. Whether you’re dealing with roof leaks, foundation seepage, or gutter sealing, Maroo delivers industrial-grade protection and peace of mind.

Formulated to meet the needs of professionals in the construction, plumbing, and roofing industries, this mastic is also safe for use in residential waterproofing tasks. It dries to a tough, black, weatherproof finish that resists UV, rain, chemicals, and temperature extremes.

KEY FEATURES:

• ✅ Bitumen-Based Formula – Provides tough, long-lasting waterproof protection

• ✅ Cold-Applied – Ready to use, no heating required

• ✅ Excellent Adhesion – Bonds to most building materials

• ✅ Flexible & Crack-Resistant – Handles expansion and contraction

• ✅ UV & Weather Resistant – Built for outdoor durability

• ✅ Non-Sagging – Ideal for vertical and overhead applications

AVAILABLE SIZES:

• 🪣 1kg

• 🪣 4kg

• 🪣 20kg (Industrial Pack)

APPLICATIONS / USAGE:

• ✔ Roof repairs and flashing

• ✔ Foundation and basement waterproofing

• ✔ Gutter joints and downpipes

• ✔ Chimneys, skylights, and parapet walls

• ✔ Expansion joints and cracks in concrete

• ✔ Waterproofing below-grade structures

INSTRUCTIONS FOR USE:

1. Clean and dry the surface to remove dust, grease, or debris.

2. Stir mastic thoroughly before application.

3. Apply generously using a trowel, spatula, or putty knife.

4. For cracks or joints, embed reinforcing fabric for added strength.

5. Allow 24–48 hours for full cure depending on thickness and weather.

SAFETY & STORAGE:

• 🧤 Use protective gloves and work in a well-ventilated area

• 🔥 Flammable – Keep away from open flames and heat sources

• ❄ Do not apply in freezing conditions

• 📦 Store in a sealed container away from direct sunlight

Maroo Bituminous Weatherproofing Mastic is the trusted solution for strong, permanent, and flexible waterproof seals — perfect for both heavy-duty commercial use and long-term residential protection.