Multi-color Exterior Wall Putty

Multi-color Exterior Wall Putty for Stone-Imitation Facades — High-Strength Base with Low Shrinkage & Alkali Resistance

Multi-color Exterior Wall Putty is a polymer-modified, single-component substrate leveling material tailored for stone-imitation paint and textured exterior coating systems. Unlike traditional white exterior putty, this product uses a pre-color-matched formula that is consistent with the topcoat tone, preventing exposure of the white base layer even in cases where the surface finish is damaged or scratched. To ensure stable and consistent substrate performance for all construction projects, JOSME employs full-process batch quality control, which includes raw material inspection, in-production monitoring, and completed product testing.

What Is Multi-color Exterior Wall Putty?

Multi-color Exterior Wall Putty is a cementitious leveling base material, specially used as the underlying base layer for liquid granite, stone-imitation paint and various textured decorative coatings.

When used with stone-imitation coating methods, conventional white exterior putty has clear limits. Uneven base flatness increases topcoat consumption; substrate alkali precipitation results in surface browning; and white base leaking often happens at damaged topcoat spots. The color-matched base design, alkali suppression components, and low-shrinkage binder system of this specially designed recipe address the aforementioned issues.

By using single-component packaging, the product simplifies on-site operating operations by requiring just on-site water mixing for construction, eliminating the need for complicated proportioning or specialized metering equipment.

Product Specifications

Key Product Advantages

Minimal Shrinkage for a Uniform and Flat Base Surface During the curing process, the Multi-color Exterior Wall Putty exhibits consistent and little shrinkage. With fewer joint traces and surface distortion, the troweled wall surface remains flat, decreasing textural deviation of the outside walls overall and offering a firm foundation for the development of stone-imitation paint.

Consistent Bonding Results After being submerged in water, the bonding strength remains above 0.4 MPa, whereas the dry bonding strength reaches at least 0.6 MPa.

Alkali Resistance: Made with expert alkali inhibitors, the substance can adjust to a substrate environment with a pH of up to 12.

Stable On-Site Workability The pot life of the mixed mortar is at least two hours. The topcoat interval is at least 48 hours, and the surface drying time is 2-4 hours in a typical climate of 25°C and 50% relative humidity.

Water-Based & Low-VOC Formula Water-based raw material systems have a low volatile organic compound (VOC) content, which minimizes worker injury during construction and satisfies environmental regulations for a variety of engineering projects.

Application Scenarios

Exquisite Commercial and Residential Facades Color-matched putty bases guaranty a consistent visual tone for external walls using granite-effect and stone-imitation decorative paints. 

High-humidity and coastal environments The cured putty layer takes very little external moisture, with capillary water absorption less than 0.5 kg/m²·h⁰·⁵, It lessens wall failure issues brought on by moisture penetration and adapts to coastal and high-humidity regions.

Renovation Projects and ETICS The formula's polymer components can adjust to insulation boards' modest thermal deformation when applied to exterior thermal insulation composite systems, preventing board junction traces from being visible on the ornamental surface.

Quality Control

JOSME conducts multi-dimensional inspection for each production batch to stabilize product performance and construction effect:

Particle Size Distribution Test: Control raw material particle size to ensure flat and smooth troweling surface.

Color Consistency Test: Adopt Delta E (ΔE) color difference detection to control batch color deviation and unify large-area wall tone.

Freeze-Thaw Resistance Test: Verify product adaptability and stability in low-temperature and cold climate environments.

Sanding Performance Test: Balance surface hardness and sanding flexibility, facilitating on-site trimming and polishing construction.

Batch Sample Retention: Reserve physical samples of each batch as quality reference to support product traceability.

Customization and Supply Options

We support personalized matching services for different project demands:

Provide custom color matching service to match various stone-imitation paint systems; support private label packaging for distributors and project exclusive supply.

Lead Time: Standard orders: 2–3 working days Custom color matching and private label orders: 7–15 working days

The product adopts 25kg export-grade reinforced packaging, which can adapt to long-distance ocean transportation and avoid damage during logistics.

FAQ

Q1: Can ordinary exterior putty replace multi-color putty for stone-imitation paint construction?

A1: Replacement is not recommended. Ordinary white putty cannot meet the flatness, shrinkage and hardness requirements of stone-imitation coating construction. This color-matched putty is developed for stone-imitation systems, which can cooperate with topcoat to stabilize overall wall performance and appearance.

Q2: What pretreatment is needed before putty application?

A2: The substrate needs to be clean, firm, and free of dust, oil and loose layers. It is recommended to brush interface agent or primer on smooth concrete surfaces to enhance bonding force.

Q3: Can colored putty replace primer coat?

A3: No. Color-matched putty optimizes the base tone but cannot replace alkali-resistant primer. Primer construction is still required to seal the substrate and ensure uniform topcoat absorption.

Q4: How long is the curing time before topcoat application?

A4: Under standard conditions of 25°C and 50% RH, the putty needs to be cured for at least 48 hours to stabilize substrate pH value and reduce surface moisture before topcoat construction.

Q5: What is the actual effect of low shrinkage performance on exterior walls?

A5: Uniform and low shrinkage curing keeps the troweled surface flat with fewer irregular traces. It makes stone-imitation paint spraying more uniform and reduces texture difference on large-area facades.

Contact Us

For project consultation, sample application, color matching and bulk order demands of Multi-color Exterior Wall Putty, please send your detailed requirements to our team via [email protected].