Specpatch 30 General Purpose Polymer-Modified Concrete Repair Mortar

SpecPatch 30 is a general-purpose polymer-modified concrete repair mortar designed for repairing concrete floors, walls, precast concrete, tilt-up panels, sidewalks, curbs, masonry surfaces, and structural concrete. This one-component repair material requires only the addition of water and delivers durable, long-lasting repairs for horizontal, vertical, and overhead applications. It can be feather-edged, shaved, sanded, and shaped to blend with surrounding concrete surfaces.

The extended working time of SpecPatch 30 makes it ideal for larger repairs where contractors need additional placement and finishing time while still achieving rapid strength development.

Key Features & Benefits

Extended Working Time

Provides approximately 30–40 minutes of initial set time, allowing more working time than ultra-fast repair mortars while still enabling rapid project completion.

One-Component Formula

Simply add clean water and mix. No additional components are required for standard installations.

Can Be Feather-Edged & Shaped

Can be feather-edged, shaved, molded, and sanded after placement for seamless repairs.

Excellent Durability & Adhesion

Provides strong adhesion to prepared concrete substrates while maintaining long-term durability in demanding service environments.

Interior & Exterior Applications

Designed for both indoor and outdoor repairs including freeze-thaw environments and exposed conditions.

Natural Concrete Gray Finish

Dries to a natural concrete gray color that blends well with existing concrete surfaces.

Common Applications

Sidewalk & Curb Repairs

Ideal for repairing deteriorated sidewalks, curbs, ramps, and pedestrian pathways.

Concrete Floor Repairs

Used to repair spalls, chips, damaged sections, and surface defects in industrial and commercial concrete floors.

Precast Concrete Restoration

Excellent for repairing precast panels, architectural concrete, and manufactured concrete products.

Tilt-Up Wall Repairs

Commonly used for repairing tilt-up wall panels and vertical concrete structures.

Concrete Pipe & Utility Structures

Suitable for repairing concrete pipe systems, drainage structures, and municipal infrastructure.

Masonry Surface Repairs

Can be used on masonry and concrete substrates where durable patching is required.

Recommended Surfaces

SpecPatch 30 is designed for use on:

• Concrete floors
• Concrete walls
• Sidewalks
• Curbs
• Parking structures
• Precast concrete
• Tilt-up panels
• Concrete pipe
• Masonry surfaces
• Structural concrete

Application Instructions

Surface Preparation

For maximum durability:

• Remove oil, grease, dust, laitance, and contaminants.
• Saw cut repair perimeter where appropriate.
• Mechanically prepare substrate to a minimum CSP 5 profile.
• Bring substrate to Saturated Surface Dry (SSD) condition before placement.

Priming

For enhanced performance:

• Coat exposed reinforcing steel with SpecPrep SB.
• Prime SSD concrete with SpecPrep SB or apply a scrub coat of mixed repair mortar before placement.

Mixing

Mix each 50 lb bag with:

• 6.75–7.25 pints of clean water

Mix thoroughly using a low-speed drill for 2–3 minutes until homogeneous.

Placement

• Trowel firmly into repair area.
• Ensure intimate contact with substrate.
• Slightly overfill repair.
• Shape during placement.
• After initial set, shave to final profile with a steel trowel.

Deep Repair Applications

For repairs deeper than 3/4 inch:

• Extend with clean 3/8" SSD pea gravel.
• Add up to 50% aggregate by weight.
• Mix an additional 2 minutes.

This creates a repair more closely matched to the thermal properties of surrounding concrete.

Coverage & Yield

Yield Per Bag

• Approximately 0.43 cubic feet per 50 lb bag.

Repair Thickness

• Feather edge to 1 inch per lift
• Up to 2 inches in isolated areas
• Additional lifts may be applied after initial set

Performance Properties

Set Time

• Initial Set: 30–40 minutes
• Final Set: 60 minutes

Compressive Strength

• 3 Hours: 1,000 PSI
• 1 Day: 3,000 PSI
• 7 Days: 5,000 PSI
• 28 Days: 6,000 PSI

Slant Shear Bond Strength

• 1,680 PSI at 7 days

Flexural Strength

• 650 PSI at 28 days

Freeze-Thaw Resistance

• 0% scaling loss after 25 cycles

Length Change

• Air Cure: -0.08%
• Water Cure: +0.03%

Shelf Life & Storage

Shelf Life

• 12 months in unopened packaging when stored properly.

Storage Conditions

• Store in a cool, dry location.
• Protect from moisture and humidity.
• Keep bags sealed until use.
• Avoid direct sunlight and weather exposure.

Frequently Asked Questions

What is SpecPatch 30 used for?

SpecPatch 30 is used for repairing concrete floors, walls, sidewalks, curbs, precast concrete, tilt-up panels, and masonry surfaces.

What is the difference between SpecPatch 15 and SpecPatch 30?

SpecPatch 30 provides a longer working time and slower set, making it better suited for larger repair projects requiring additional finishing time.

Can SpecPatch 30 be used vertically?

Yes. It is suitable for vertical, horizontal, and overhead repairs.

Can it be feather-edged?

Yes. The material can be feather-edged and shaped to blend into surrounding concrete.

Can it be used outdoors?

Yes. It is specifically designed for both interior and exterior concrete repair applications.

What color does it dry?

It dries to a natural concrete gray finish that blends well with surrounding concrete.

Technical Data Summary (TDS)

Product Type

• Polymer-modified concrete repair mortar

Mix Ratio

• 6.75–7.25 pints water per 50 lb bag

Initial Set

• 30–40 minutes

Final Set

• 60 minutes

Compressive Strength

• 6,000 PSI at 28 days

Yield

• 0.43 cubic feet per bag

Application Thickness

• Feather edge to 1 inch
• Up to 2 inches in isolated repairs

Application Areas

• Horizontal
• Vertical
• Overhead

Finish Color

• Natural concrete gray

Use Location

• Interior & Exterior

Shelf Life

• 12 months

Safety Data Summary (SDS)

Hazard Information

SpecPatch 30 contains Portland cement and crystalline silica and may:

• Cause skin irritation
• Cause serious eye damage
• Cause respiratory irritation
• Cause allergic skin reactions
• Present long-term respiratory hazards from dust exposure

Recommended PPE

• Safety glasses or goggles
• NIOSH-approved respirator when dust is present
• Protective gloves
• Long sleeves and protective clothing

First Aid

Eye Contact

• Flush with water for at least 15 minutes and seek medical attention.

Skin Contact

• Wash thoroughly with soap and water.

Inhalation

• Move to fresh air.

Ingestion

• Seek immediate medical attention.

Storage

• Store dry and protected from moisture.
• Keep packaging tightly sealed.
• Minimize dust generation during handling.