SAKRETE fast-patch

Patch concrete in just 20 minutes! Use SAKRETE fast-patch, a fast-setting, patch material designed for repairs that require a quick return-to-service time. Available in 2 KG, 5 KG and 15 KG pails. Go with SAKRETE, The Pro’s Choice since 1936.

Product Codes:
2 KG: 12091102
5 KG: 12091105
15 KG: 12091115

• Premium quality, patch material for repairs to concrete that require a set time of 8 to 12 minutes
• Ideal for fast repairs of concrete steps, walks, drives and patios
• Apply in a thickness up to 2 inches (5 cm)
• Open to foot traffic in 1 hour
• Ready to use; just add water


• Sets in minutes
• High strength
• Ready to use
• Non-shrinking



Ideal for fast repairs to concrete sidewalks, curbs, driveways, floors, steps, parking garages, loading docks, highway structures, pre-cast units and concrete pipe. May also be used to anchor posts, parking meters and guard rails.


Mix and substrate temperatures should be maintained between 5 ºC and 30 ºC (40 ºF and 86 ºF) for at least 24 hours prior to and 48 hours after.

Surface Preparation: Surfaces to be repaired must be structurally sound and clean. Remove all delaminated or unsound concrete by chipping with a hammer and chisel or using a stiff wire brush. Clean the area to be repaired with potable water, leaving the concrete saturated but free of standing water. Some very porous concretes may require several applications of water to ensure complete saturation.

Mixing: Place a small amount of SAKRETE fast-patch in a clean container and add cold clean water until the mix is like a slurry. Brush or broom this slurry coat over dampened repair area to act as a prime. Then place remaining contents into a clean mixing container. Add approximately 120 mL (4 oz) of clean water per 1 kg (2.2 lb) or enough to achieve a workable mix (mortar consistency like putty). Do not mix longer than 1 minute. Avoid a soupy mix. Excess water reduces strength and durability and can cause cracking. In cold weather use warm water to accelerate the set. Use cold water to slow the set in hot weather. Discard any product that sets up. For repairs greater than 2 inches (5 cm) in depth add fine gravel 1/2 an inch (1.25 cm) or smaller at a rate of 0.5 kg (1.1 lb) per 1 kg (2.2 lb) of SAKRETE fast-patch. The gravel and SAKRETE fast-patch should be dry mixed together before adding the water.

Placing: After mixing use a trowel and apply over slurry coat while it is still wet. Force the mixture into the roughened repair area. For deep repairs, rod and tamp to eliminate voids in the patch. Level and smooth the patched area at once.

Anchoring Posts and Poles: After mixing, position the post in hole and pour in mix. Align post using a level and check the vertical position. There is no need to brace; SAKRETE fast-patch will stiffen almost immediately. Do not rework once the mix has set.


Curing means maintaining proper moisture and temperature. Under normal temperatures, keep the repair damp by spraying with a fine mist of water or cover with a plastic sheet for at least 30 minutes. When exposed to high heat, direct hot sunlight, dampen and keep covered for at least 24 hours to protect repair from rapid drying.


Initial Set: approximately 20 minutes

Compressive Strength:

2 Hour 7 MPa (1000 psi)
7 Day 30 MPa (4350 psi)
28 Day 50 MPa (7250 psi)


Wait 28 days before painting.


1 kg (2.2 lb) yields approximately 30 in² at 1 inch thick (200 cm² at 2.5 cm thick).


CAUSES BURNS. Do not swallow. Do not get in eyes. Do not get on skin or clothing. Do not breathe fumes. Handle with care. Keep out of reach of children. Wear safety glasses, protective clothing and dust mask. Use only in a well-ventilated area.

FIRST AID TREATMENT: Contains cement, when wet forms a calcium hydroxide solution. If swallowed call a poison control center or doctor immediately. Do not induce vomiting. If in eyes, rinse with water for at least 15 minutes. If on skin, rinse well with water. If on clothes remove clothes. If breathed in, move person to fresh air.


This product is designed to meet the performance specifications outlined in this product data sheet. If the product is used in conditions for which it was not intended, or applied in a manner contrary to the written recommendations contained in the product data sheet, the product may not reach such performance specifications. The foregoing is in lieu of any other warranties, representations or conditions, expressed or implied, including, but not limited to, implied warranties or conditions of merchantable quality or fitness for particular purposes, and those arising by statute or otherwise in law or from a course of dealing or usage of trade.

Patch concrete in just 20 minutes! Use SAKRETE fast-patch, a fast-setting, patch material designed for repairs that require a quick return-to-service time. Available in 2 KG, 5 KG and 15 KG pails. Go with SAKRETE, The Pro’s Choice since 1936.

Product Codes:
2 KG: 12091102
5 KG: 12091105
15 KG: 12091115

• Premium quality, patch material for repairs to concrete that require a set time of 8 to 12 minutes
• Ideal for fast repairs of concrete steps, walks, drives and patios
• Apply in a thickness up to 2 inches (5 cm)
• Open to foot traffic in 1 hour
• Ready to use; just add water


Product Identifier

Concrete and Masonry Repair Mixes

Other Means of Identification Concrete and Masonry Repair Mixes
Other Identification SAKRETE top’n bond, SAKRETE flow-stone, SAKRETE fast-patch, SAKRETE plug-tite, SAKRETE brush’n seal, KING Xypex high’n dry
Product Family KING Home Improvement Products
Recommended Use

Various product uses including but not limited to specific description of use. Please see product packaging.

Restrictions on Use None known.

King Packaged Materials Company, 3385 Harvester Road, Burlington, Ontario, L7R 3Y5,

Emergency Phone No. King Packaged Materials Company, (800) 461-0566, 8:30am-4:30pm, Chemtrec, (800) 424-9300, 24 hours/7 days a week
SDS No. 0156
Date of Preparation April 05, 2016


Skin irritation – Category 2; Serious eye damage – Category 1; Skin sensitization – Category 1; Carcinogenicity – Category 1A; Specific target organ toxicity (single exposure) – Category 3; Specific target organ toxicity (repeated exposure) – Category 1

Label Elements

Signal Word:

Hazard Statement(s):
Causes skin irritation.
Causes serious eye damage.
May cause an allergic skin reaction.
May cause cancer.
May cause respiratory irritation.
Causes damage to organs (lungs) through prolonged or repeated exposure.

Precautionary Statement(s):
Obtain special instructions before use.
Do not handle until all safety precautions have been read and understood.
Wash hands thoroughly after handling.
Contaminated work clothing must not be allowed out of the workplace.
Wear protective gloves/protective clothing/eye protection/face protection.
Use only outdoors or in a well-ventilated area.
Do not breathe dust/fume/gas/mist/vapours/spray.
Do not eat, drink or smoke when using this product.

IF exposed or concerned: Get medical advice/attention.
IF ON SKIN: Wash with plenty of water.
Take off contaminated clothing and wash it before reuse.
If skin irritation or rash occurs: Get medical advice/attention.
IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Immediately call a POISON CENTRE or doctor.
IF INHALED: Remove person to fresh air and keep comfortable for breathing.

Call a POISON CENTRE or doctor if you feel unwell.
Store locked up.
Store in a well-ventilated place. Keep container tightly closed.
Dispose of contents and container in accordance with local, regional, national and international regulations.
30% of the mixture consists of ingredient(s) of unknown acute toxicity.

Other Hazards
None known.



Chemical Name CAS Registry No. Concentration % Other Identifiers
Silica, total quartz 14808-60-7 60-100% Not applicable
Portland cement 65997-15-1 30-60% Not appliable


The exact percentage (concentration) of composition has been withheld as a trade secret in accordance with paragraph (i) of §1910.1200.


First-Aid Measures

Move to fresh air. Keep at rest in a position comfortable for breathing. Call a Poison Centre or doctor if you feel unwell.
Skin Contact
Rinse with lukewarm, gently flowing water for 5 minutes. Take off immediately contaminated clothing, shoes and leather goods (e.g. watchbands, belts). Thoroughly clean clothing, shoes and leather goods before reuse or dispose of safely. If skin irritation or a rash occurs, get medical advice or attention.
Eye Contact
Immediately rinse the contaminated eye(s) with lukewarm, gently flowing water for 15-20 minutes, while holding the eyelid(s) open. Remove contact lenses, if present and easy to do. Immediately call a Poison Centre or doctor.
Never give anything by mouth if person is rapidly losing consciousness, or is unconscious or convulsing. Do not induce vomiting. Get medical advice or attention if you feel unwell or are concerned.

Most Important Symptoms and Effects, Acute and Delayed
If inhaled: can irritate the nose and throat. Can cause lung injury. If on skin: skin sensitizer. May cause an allergic skin reaction in some people. May cause moderate to severe irritation. If in eyes: causes moderate to severe irritation. Symptoms include sore, red eyes, and tearing. If swallowed: can irritate the mouth, throat and stomach. Symptoms may include nausea, vomiting, stomach cramps and diarrhea.

Immediate Medical Attention and Special Treatment

Special Instructions
Not applicable.


Extinguishing Media

Suitable Extinguishing Media
Not combustible. Use extinguishing agent suitable for surrounding fire.
Unsuitable Extinguishing Media
None known.

Specific Hazards Arising from the Product
This product presents no unusual hazards in a fire situation.

Special Protective Equipment and Precautions for Fire-Fighters
Approach fire from upwind to avoid hazardous vapours or gases. Fire-fighters may enter the area if positive pressure SCBA and full Bunker Gear is worn.


Personal Precautions, Protective Equipment, and Emergency Procedures
Use the personal protective equipment recommended in Section 8 of this safety data sheet. Evacuate the area immediately. Isolate the hazard area. Keep out unnecessary and unprotected personnel.

Environmental Precautions
It is good practice to prevent releases into the environment. Do not allow into any sewer, on the ground or into any waterway.

Methods and Materials for Containment and Cleaning Up
Collect using shovel/scoop or approved HEPA vacuum and place in a suitable container for disposal. Avoid generating dust.


Precautions for Safe Handling
Avoid repeated or prolonged skin contact. Do not swallow. Do not breathe in this product. Avoid generating dusts. Keep containers tightly closed when not in use or empty. Do NOT eat, drink or store food in work areas.

Conditions for Safe Storage
Store in the original, labelled, shipping container. Store in an area that is: dry, well-ventilated. Protect product from contact with water, including humidity. Prevent rainwater and ground water from reaching storage area.


Control Parameters




Chemical Name





8-hr TWA


Silica, total quartz

0.05 mg/m3
(R) A2

0.1 mg/m3

Portland cement

1 mg/m3
(R) A4

5 mg/m3


Appropriate Engineering Controls
Use local exhaust ventilation, if general ventilation is not adequate to control amount in the air.

Individual Protection Measures

Eye/Face Protection
Wear chemical safety goggles and face shield when contact is possible.
Skin Protection
Wear chemical protective clothing e.g. gloves, aprons, boots.
Respiratory Protection
Wear a NIOSH approved particulate respiratory equipped with an N95, R95, or P95 filter.


Basic Physical and Chemical Properties

Appearance Grey powder


Odour Threshold

Not available


Not available

Melting Point/Freezing Point Not available (melting); Not available (freezing)

Initial Boiling Point/Range

Not available

Flash Point

Not available

Evapouration Point

Not available

Flammability (solid, gas)

Not applicable

Upper/Lower Flammability or Explosive Limit

Not available (upper); Not available (lower)

Vapour Pressure

Not available

Vapour Density (air = 1)

Not available

Relative Density (water = 1)



Not available (water); Not available (other liquids)

Partition Coefficient, n-Octanol/Water (Log Kow)

Not available

Auto-ignition Temperature

Not available

Decomposition Temperature

Not available


Not available (kinematic); Not available (dynamic)

Physical State




Not reactive under normal conditions of use.

Chemical Stability
Normally stable.

Possibility of Hazardous Reactions
None expected under normal conditions of storage and use.

Conditions to Avoid
Water, moisture or humidity.

Incompatible Materials
None known.

Hazardous Decomposition Products
Under normal conditions of storage and use, hazardous decomposition products should not be produced.


Likely Routes of Exposure
Inhalation; skin contact; eye contact; ingestion.

Acute Toxicity

Chemical Name LC50 LD50 (oral) LD50 (dermal)
Silica, total quartz 500 mg/kg (rat)


Skin Corrosion/Irritation
May cause moderate or severe irritation based on information for closely related materials.
Serious Eye Damage/Irritation
May cause serious eye damage based on information for closely related materials.

STOT (Specific Target Organ Toxicity) – Single Exposure

May cause severe nose and throat irritation, severe lung injury.
Skin Absorption
No information was located.
May be harmful based on information for closely related materials.

Aspiration Hazard
Can cause lung damage if aspirated based on human experience.

STOT (Specific Target Organ Toxicity) – Repeated Exposure
Causes irritation of the respiratory system. Respiratory tract injury has been observed. Respirable crystalline silica in the form of quartz or cristobalite from occupational sources is listed by the International Agency for Research on Cancer (IARC) and National Toxicology Program (NTP) as a lung carcinogen. Prolonged exposure to respirable crystalline silica has been known to cause silicosis, a lung disease, which may be disabling. While there may be a factor of individual susceptibility to a given exposure to respirable silica dust, the risk of contracting silicosis and the severity of the disease is clearly related to the amount of dust exposure and the length of time (usually years) of exposure.

Respiratory and/or Skin Sensitization
May cause an allergic reaction (skin sensitization) based on information for closely related chemicals.


Silica, total quartz Group 1 A1 Known carcinogen


May causer cancer.

Reproductive Toxicity

Development of Offspring
No information was located.
Sexual Function and Fertility
No information was located.
Effects on or via Lactation
No information was located.

Germ Cell Mutagenicity
No information was located.
Interactive Effects
No information was located.


May cause long lasting harmful effects to aquatic life.

Persistence and Degradability
No information was located.

Bioaccumulative Potential
No information was located.

Mobility in Soil
No information was located.

Other Adverse Effects
There is no information available.


Disposal Methods
Contact local environmental authorities for approved disposal or recycling methods in your jurisdiction.


Not regulated under US DOT Regulations.

Environmental Hazards
Not applicable
Special Precautions
Not applicable

Transport in Bulk According to Annex II of MARPOL 73/78 and the IBC Code
Not applicable


Safety, Health and Environmental Regulations

WHMIS 1988 Classification

Class D2A, Class E
D2A – Very Toxic (Chronic toxicity; Carcinogenicity); E – Corrosive

This product has been classified in accordance with the hazard criteria of the Controlled Products Regulations and the SDS contains all of the information required by the Controlled Products Regulations.


Toxic Substances Control Act (TSCA) Section 8(b)
All ingredients are on the TSCA Inventory or are exempt from TSCA Inventory requirements under 40 CFR 720.
Additional USA Regulatory Lists
This product contains a chemical known to the State of California to cause cancer.


SDS Prepared By King Packaged Materials Company
Phone No. 905-639-2993
Date of Preparation April 05, 2016


To the best of our knowledge, the information contained herein is accurate. However, neither KPM Industries Ltd., nor any of its subsidiaries, assumes any liability whatsoever for the accuracy or completeness of the information contained herein. Final determination of suitability of any material is the sole responsibility of the user. All materials may present unknown hazards and should be used with caution. Although certain hazards are described herein, we cannot guarantee that these are the only hazards that exist.

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More Information

PLEASE NOTE: This product was previously known as KING swift-set.

SAKRETE fast-patch can be used to repair concrete surfaces. Learn to repair concrete surfaces by watching the how-to video or reading the how-to instructions.