Universal Concrete Overlay & Microtopping MiultiPro 5 in 1

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Multi-Pro Polymer-Modified Concrete Overlay System

GlobMarble’s Multi-Pro is a universal, multipurpose polymer-modified concrete overlay system designed for both interior and exterior decorative concrete resurfacing. Supplied in a white-base formula, it’s ideal for transforming worn surfaces with microtoppings, spray textures, skim coats, or troweled overlays - and supports multiple finishes like knockdown, wood grain, and broom textures.

Multi-Pro is a cement-based overlay mix engineered for flexibility in the field. Whether used as a thin concrete resurfacer or built up to 3/8", this multi-use overlay system works for pool decks, patios, walkways, and vertical surfaces. For integral color, simply add 1 ColorPack per 50 lb bag and maintain consistent water usage to ensure uniform shade across batches.

Key Features

Universal & multipurpose application - one system, many finishes;
Polymer-modified for strength, bond, and flexibility;
White base accepts integral color with 1 ColorPack per bag;
Apply by trowel, squeegee, broom, or hopper gun;
Supports knockdown, wood grain, and broom finishes;
Ideal for both thin microtoppings and thicker textured overlays;
Up to 7,000 psi compressive strength;
For use on horizontal or vertical concrete;
Interior & exterior grade;
Water cleanup, easy to mix and apply.

Coverage & Water Requirements

Application Method	Water per Bag	Coverage per 50 lb Bag
Squeegee (1/16")	10–10.5 pints	105–145 sq. ft.
Trowel Thin (1/16")	8–9 pints	80–120 sq. ft.
Trowel (1/4")	8–9 pints	42–75 sq. ft.
Trowel Thick (3/8")	7.5–8.5 pints	15–17 sq. ft.
Hopper Gun (Spray Texture)	9–10.5 pints	30–75 sq. ft.
Wood Grain / Stencil Finish	8–9 pints	~40–60 sq. ft.
Broom Finish Overlay	8–10 pints	~60–100 sq. ft.

Compressive Strength (ASTM C-109)

Time After Set	PSI
3 Hours	1,000 psi
1 Day	2,000 psi
7 Days	4,000 psi
28 Days	4,000–7,000 psi

Application Instructions:

Surface Preparation (Required for All Applications)

Clean the Surface: Remove all sealers, paints, curing compounds, grease, oil, dust, and other contaminants. Mechanical scarification or acid etching is recommended to create a proper bonding profile.
Repair Cracks: Fill any cracks wider than a credit card with a suitable patching material before applying Multi-Pro.
Dampen the Surface: Saturate the concrete with clean water and remove any standing water before placing material.
Cure Time: Ensure concrete is fully cured (minimum 28 days).
Environmental Conditions: Do not apply if rain is expected within 6–8 hours or if temperatures will fall below 50°F within 24 hours.

Mixing Procedure (Start Here for Every Application)

Start with the minimum water requirement for your selected application (refer to the chart above).
If using ColorPack, add 1 full packet to the water and blend thoroughly before adding powder.
Slowly add one 50 lb bag of Multi-Pro while mixing with a heavy-duty drill and paddle mixer (min. 650 RPM).
Mix for 3 – 5 minutes until lump-free.
Adjust water as needed to reach desired workability - do not exceed maximum listed.
⚠️ Use the same total water amount per bag for color consistency across batches when using Color Packs.

Application Methods

Squeegee Application

Start with 10 pints of water.
Spread evenly with gauge rake or flexible squeegee.
Knock down any high points with the squeegee.
(Optional) Begin finishing or burnishing with steel or plastic trowel 15–20 minutes after placement.
If the Overlay starts setting too fast while finishing, gently mist the surface with water from a pump sprayer.

Classic Microcement, Trowel Application

Start with 7.5 – 8 pints of water.
Apply using steel, plastic or rubber trowel.
Apply in one or more lifts, up to 3/8".
Float or texture as desired.
(Optional) After 15 - 20 minutes you can burnish the finish if using a steel trowel.

Hopper Gun Application

Start with 9 pints of water.
Load into hopper gun with 1/4"– 3/8" tip.
Spray in circular or sweeping motion.
(Optional) Let flash before texture or knockdown.
Proceed to texture, knockdown, or leave as-sprayed.

Knockdown Texture

Start with 8 pints of water.
Spray surface using hopper gun OR apply with trowel.
If using trowel, create a "popcorn ceiling" texture by pressing it directly into the surface and lifting straight up without any dragging or lateral movement.
Let surface set (5 - 15 minutes) until you can touch a raised peak, and have it hold shape without sticking to your finger.
Knock down the peaks with a trowel to flatten them into a textured surface.

Broom Finish

A broom finish requires two coats. For the primer coat, start with 8 pints of water.
Squeegee the Multi-Pro over the entire surface, smoothing down any high points.
Once set, (45 - 120 minutes) repeat steps 1 & 2 again.
After 5 - 15 minutes, use a concrete broom on the surface to create the broomed texture.
After 30 - 90 minutes, lightly broom again to remove excess crumbs. Do not use excess pressure or this will ruin the broomed texture.

Wood Grain / Stencil Finish

Stenciled finishes require 2 coats. Start with 7.5 – 8 pints of water.
Apply using a trowel or squeegee over the entire surface.
Once cured, adhere the stencils to the coating.
Mix another coat and apply with the trowel. Press the trowel flat into the coating and drag it to create a wood grain texture.
Once the second coat has partially set, (30 – 90 minutes) remove the stencils. Waiting until the overlay fully sets will make removing the stencils much harder.