Mapeflex PU 45 FT Sealant

MAPEFLEX PU 45 FT – Durable & Paintable Polyurethane Sealant & Adhesive

Engineered for strength, flexibility, and performance, MAPEFLEX PU 45 FT is a high-modulus, one-component polyurethane sealant and adhesive designed for demanding construction and industrial applications. Its rapid-curing, solvent-free formula delivers exceptional adhesion and movement accommodation up to ±20%, making it ideal for joints and flexible bonding across a wide range of substrates.

✅ Why Choose MAPEFLEX PU 45 FT?

• Fast Curing: Surface-skin formation in ~35 minutes with full cure depth of ~3.3 mm/24 h at +23 °C/50% RH.

• High Modulus Strength: With a modulus of 0.70 N/mm² at 100% elongation and Shore A hardness of ~40, it ensures reliable mechanical performance.

• Versatile Application: Suitable for both vertical and horizontal joints, expansion joints, and as a construction adhesive.

• Low-VOC & Solvent-Free: Thixotropic and environmentally safer for indoor and outdoor use.

• Paintable: Once cured, compatible with elastomeric coatings like Elastocolor (test recommended).

🛠️ Applications

As a Sealant:

• Expansion and distribution joints in heavy-traffic zones (car parks, warehouses)

• Concrete walls, external façades, and tiled floors

• Fillet joints, gutters, flashing, and pipework

As an Adhesive:

• Strong, flexible bonding for cement-based materials, wood, glass, metals, PVC, plaster, ceramics, drywall, GRP, and more

• Ideal for bonding up to 3 mm bead thickness

🎨 Colours & Packaging

• Colours: White, 111 grey, 113 grey, black, brown and beige.

• Formats: 300 mL cartridge (~3 m of 10×10 mm bead) or 600 mL tube (~6 m)

• Coverage: Approx. 3 m per 300 mL cartridge on standard joint dimensions

🔧 Application Guidelines

• Surface Prep: Clean, dry, sound, and grease-free. Use a backer rod where needed and avoid base adhesion in joints.

• Primers (if required): Use Primer M for porous or Primer P for plastics and smooth substrates.

• Installation: Cut nozzle at 45°, apply steadily, smooth with soapy water while wet.

• Bonding: Apply in beads or dabs; adjust within ~6 minutes; support heavy items for at least 24 hours.

• Painting: Only after full curing and compatibility check with coating.

⚠️ Important Use Notes

• Do not apply below +5 °C or on wet/contaminated surfaces.

• Avoid use on natural stone (e.g., marble) and bituminous substrates—opt for Mapesil LM instead.

• Never expose uncured sealant to solvents or disturb it before complete curing.

📏 Key Performance Specifications

• Movement Capacity: ±20%

• Modulus at 100%: 0.70 N/mm²

• Hardness (Shore A): ~40

• Skin Time: ~35 minutes

• Curing Depth: ~3.3 mm per 24 hours at standard conditions

• Consumption: 12 linear meters with a 5x5mm joint

Datasheet