Webermin 150 – Mineral Exterior Coating

Webermin 150 is a medium-textured decorative exterior coating developed with a cement-based, fiber-reinforced formulation that provides long-lasting durability and protection for exterior façade applications. Its high vapor permeability allows surfaces to breathe while offering reliable resistance against weather conditions. It is particularly suitable as a finishing coat in external thermal insulation systems.

What Is Webermin 150?

Technically, Webermin 150 is a:

• Cement-based coating
• Fiber-reinforced formulation
• Medium-textured decorative exterior finish

The product is manufactured in compliance with TS 7847 standards, carries the G Mark, and is classified under Public Works Unit Price No. 04.476/A.

Key Advantages

• High water vapor permeability allows surfaces to breathe
• Fiber-reinforced structure provides long-term durability against environmental factors
• Resistant to water and frost
• Non-combustible for enhanced safety
• Creates a natural and decorative surface appearance
• Easy to apply
• Can be painted with exterior façade paints after curing

Applications

Webermin 150 is used as a finishing coat for:

• Exterior façades of all building types
• External thermal insulation systems (ETICS)

Suitable Substrates

• Cement-based renders
• Fair-faced concrete surfaces treated with appropriate weber.tec products
• Rendered aerated concrete (AAC) surfaces

Technical consultation is recommended for other substrate types.

Application Limitations

• Not suitable for horizontal surfaces or surfaces with a slope of less than 45°
• Should not be applied directly to brick, untreated aerated concrete, or weak plaster surfaces

Application Properties

Performance Characteristics

Surface Preparation

Before application:

• The substrate must be clean, sound, and level.
• Dust, dirt, and loose particles must be completely removed.
• The surface should be dampened before application.
• In hot or windy weather conditions, the substrate should be thoroughly saturated with water.

Application Conditions

• Ambient temperature: +5°C to +30°C
• Do not apply in extremely hot, humid, windy conditions, or under direct sunlight.
• Do not apply on frozen surfaces or surfaces at risk of freezing.

Application Instructions

1. Mix 25 kg of Webermin 150 with approximately 7 liters of clean water.
2. Blend using a trowel or low-speed mixer until a homogeneous consistency is achieved.
3. Allow the mixture to rest for 5 minutes.
4. Remix briefly before application.
5. Apply the prepared mortar evenly using a stainless steel trowel.
6. Create the desired texture with circular movements using a plastic float while the material is still wet.
7. The application thickness should correspond to the size of the largest aggregate in the mixture.

Consumption

• Average consumption: 2.10–2.30 kg/m²

Packaging and Storage

• Packaging: 25 kg bags
• Pallet quantity: 64 bags (1,600 kg)
• Color: White
• Shelf life: 12 months when stored unopened in a cool, dry environment
• Pallet dimensions: 107 × 107 cm

Frequently Asked Questions (FAQ)

Which surfaces can Webermin 150 be applied to?

It can be applied to cement-based renders, properly prepared fair-faced concrete surfaces, and rendered aerated concrete substrates.

What is the application thickness?

The standard application thickness is 1.5 mm.

Can it be painted?

Yes. After the coating has fully cured, it can be painted with silicone-enhanced exterior façade paints.

Can dark colors be used?

Dark colors are generally not recommended for thermal insulation systems. If desired, they should be used only on limited decorative sections of the façade.

When should the texture be created?

The texture should be formed immediately after application while the material is still wet and workable.