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Dexpan Non Explosive Controlled Demolition Agent (44lb box) for Concrete Cutting, Rock Breaking, Excavating, Quarrying, Mining by Silent Cracking. Alternative to Blasting, Jackhammer, Diamond Blade Concrete Saw, Rock Drill, Demolition Hammer Breaker

3.5 out of 5 stars 13 customer reviews

Price: $99.00 + $30.49 shipping
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Ships from and sold by Archer USA / Dexpan USA.
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  • Concrete Demolition and Rock Breaking has never been EASIER! 3 Easy Steps to use: Drill, Mix, Pour.
  • Amazing 18,000 PSI expansive strength when mixed with water. Cracks according to drilling patterns.
  • Dexpan breaks Reinforced Concrete & Rock WITHOUT Noise, Vibration! SILENT Controlled Demolition.
  • Hundreds Job photos! Alternative to demolition jack hammer breaker, jackhammer, diamond saw blade
  • Type#2 (Rock, Concrete Temperature 50F~77F). 44 Lb. Box fills up to 35 linear ft. of 1.5 in. holes.

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Frequently Bought Together

  • Dexpan Non Explosive Controlled Demolition Agent (44lb box) for Concrete Cutting, Rock Breaking, Excavating, Quarrying, Mining by Silent Cracking. Alternative to Blasting, Jackhammer, Diamond Blade Concrete Saw, Rock Drill, Demolition Hammer Breaker
  • +
  • Bosch HC5091 1-1/2-Inch x 16-Inch x 21-Inch Wild Bore SDS Max Rotary Hammer Bit
Total price: $178.99
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Product Description

Concrete Demolition and Rock Breaking has never been easier with Dexpan® Expansive Demolition Grout. Dexpan® is a powder with amazing 18,000 PSI expansive strength when mixed with water. Poured into drilled holes, Dexpan® can break concrete and rocks safely and quietly, while providing SILENT cracking. It is safer, easier and more cost effective. Note 1) Not recommended for concrete slab less than 6" in depth. Note 2) You are getting one 11 Lb. Bucket of Dexpan which fills up to 9 lineal feet (2.5 m) of 1.5 inches (3.8 cm) diameter holes. Note 3) Choose correct type of Dexpan® based on rock / concrete temperature. **PLEASE READ CAREFULLY BEFORE USE** **ALWAYS WEAR Safety Goggles, Rubber Gloves, Dust Mask** How to use Dexpan? STEP 1) Drilling: Use 1.5 inches (3.8 cm) drill bit, holes should be drilled 1 ft (30 cm) apart. 80-90% of the depth, DO NOT go through. STEP 2) Mixing: In a bucket, combine 0.4 gallons (1.5 liters) of water with one 11 lb. (5 kg.) bag. Mix well to a slurry. (a drill and paddle is recommended) STEP 3) Filling: *Warning: Use of Dexpan in extreme hot temperatures could cause blowouts. Dexpan® slurry should be poured into holes within 10-15 minutes after mixing. Coverage: Normally one 11 lb. (5 kg.) bag can fill up to 9 lineal feet (2.5 meters). STEP 4) Cracking Or Breaking Time: Properly mixed, the cracks may appear after 2-8 hours. Allow 24 hours for best results. **WARNING** IMPORTANT SAFETY PRECAUTIONS and FIRST AID: 1) SAFETY GOGGLES, RUBBER GLOVES and DUST-PROOF MASK is required. 2) **WARNING** BLOWOUTS may occur! DO NOT look directly into filled holes. 3) Do not breathe in dust. Avoid eye and skin contact. If eye or skin contact should occur, rinse it off IMMEDIATELY with plenty of water and consult doctor. 4) Keep Dexpan® in DRY storage. Seal box / bag after use. 5) Keep out of reach of children and pets. 6) SDS (safety data sheet) is available upon request. * Please leave a Review, we'll send you a FREE Dexpan Hat.

Product Information

Technical Details

Part Number DEXPAN44BOX2
Item Weight 44 pounds
Product Dimensions 15 x 11 x 7 inches
Item model number DEXPAN44BOX2

Additional Information

ASIN B000BRPHQ4
Customer Reviews
3.5 out of 5 stars 13 customer reviews

3.5 out of 5 stars
Best Sellers Rank #533,782 in Home Improvements (See top 100)
#613 in Home Improvement > Painting Supplies & Wall Treatments > Wall Repair
Shipping Weight 48 pounds (View shipping rates and policies)
Date First Available October 15, 2005

Warranty & Support

Product Warranty: For warranty information about this product, please click here

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Important Information

Seller Warranty Description

**WARNING** Safety goggles, rubber gloves, dust mask is required. **WARNING** BLOWOUTS may occur! DO NOT look directly into filled holes. Dexpan Limited Warranty: 1) For best results, drilling and mixing are critical to Dexpan®. First time users are highly recommended to call our FREE technical support group before use (Tel: 575-528-5454). 2) All products of Archer Company USA (DBA Dexpan USA) are warranted to be free from defects in materials or workmanship for one year from the date of purchase. 3) Within this period, Archer (Dexpan) will, at its sole option, replace any products that fail in proper and normal use. Such replacement will be made at no charge to the customer, provided that the customer shall be responsible for any transportation cost. 4) This warranty does not cover failures due to abuse, misuse, accident, or unauthorized alterations. Always follow safety precautions and usage instruction on our website. 5) Written description of problem and supporting job photos are necessary to warrant this claimer. 6) Breakage or cracks vary due to drilling pattern done by customer. Archer (Dexpan) is not responsible for any unexpected results. 7) Cracking Time is not guaranteed. Allow at least 24 hours for complete set time. Archer (Dexpan) is not responsible for any job delay lost.


Customer Questions & Answers

Customer Reviews

Top Customer Reviews

By James M. Tetreault on August 19, 2007
Verified Purchase
I used this material to crack a 18" wide by 6'long wall that was buried in my front yard from a building that burn down years before. I dug 2' down on all sides and made 1.5" x 18" deep holes evey 8" down the middle of the wall. I mixed 3 bags of Dexpan (may have been able to do it with two) and filled the holes. Wihtin 4 hours parts of the wall began to crack and by the next morning the entire top could be scraped off with a loader/backhoe. I was sure easier to drill holes rather than run a 60# hammer all morning.
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Purchased this item to break a 1 foot thick concrete retaining wall. Bored 1 1/2" holes as prescribed, mixed and poured the Dexpan. Thought it was useless after waiting 6 hour for it to starting breaking the wall, on the 7th hour cracks developed, the next day the entire wall had broken up. Be patient, this stuff works, sure beats renting an air compressor/jack hammer.. so much easier. With a 90lb jack hammer this wall would have taken a day to demolish. Pre drill with a 1" bit, then with a 1 1/2", drilling took 4 hours for about 60 holes. Follow the instructions, great stuff

Paul Meiners
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Like the other reviews I am thrilled with the results! I just wanted to add that you have to be patient and sometimes wait a little longer. I'm presently breaking some very very old foundations that are 2 ft. square. Several of the sections took 72 hours to crack. The quickest has been 30 hours. The neat thing is after the cracking, it just keeps expanding and increases the size of the cracks. I believe my increased time is a result of restraint, mix, and age of the concrete. Cracking always first goes to the free surface (dirt side) and finally cracks transverse which is the more restrained direction. I have been pretty careful with the mix. The point I wanted to make is don't give up if you don't see any cracking after a couple days. Sometimes it takes longer. I've used this stuff in the rain with no problems. To crack through my 2 ft. foundation I've gotten by with two holes. I prefer to drill five holes in a diamond pattern across the foundation, i.e., four corners and one center. That gives me lots of cracking to easily break out with a jackhammer and then cut rebar. I'd recommend you place the Dexpan about a week before your you start hammering. Also if you are new to drilling large concrete holes (1 1/2 in.) it is my opinion that pilot holes are pretty useless. To large a hole and the larger bit wanders and you get binding. Both drills will tend to follow different paths as they hit different hardness of aggregate. If your drill binds you can avoid injury to your wrist by not holding the D handle of your drill with an opposing thumb. Keep your thumb on the same side of the handle as your fingers. Then the drill will twist out of your hand and not twist your wrist.
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I bought some Dexpan locally after reading about it online, and it is the bee's knees for sure! After my chimney was demolished (on purpose...) I was left with what turned out to be a 9.5" thick concrete slab. And it's 50 years old, so extremely tough and strong. After my contractors spent half a day with their jackhammer more or less bouncing off this thing, I went and got some Dexpan.

One note of caution: be sure you follow the directions precisely for best results. I didn't realize at the time that my contractors drilled only 1" holes. Dexpan really wants 1-1/2 to 2" diameter holes. And it doesn't hurt to put them closer together than the max listed 12". It just uses a little more Dexpan, but the product works much faster. Even with 1" holes spaced 12", I still got cracking, but it took 30 hours to get all the way through. For my second batch with 1-1/2" holes spaced more like 10" apart it worked in 12-18 hours.

Absolutely effective and safe product, and miles better than jackhammering something this big.
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Verified Purchase
This stuff was awsome, I used it to break apart the old base to my fire place inside of my house a 4 foot x 4 foot cube. one box was enough to do the job. I was unable to rent a hammer drill bit as large as the recommended size so I moved the holes closer together, about 12 inches on center. It took a little longer so I waited over night and when I got up in the morning it was all broken up nicely. be cautious of blowouts, cover the holes with a piece of plywood for safety you will be glad you did. Note: holes with blowouts will still do there job so dont get discouraged.
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Verified Purchase
This is great stuff for removing concrete in bad places, or
trying save concrete next to what your taking out. Don't buy
too much, a little goes a long way. But its amazing stuff, and
make sure you watch the videos on website.
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Dexpan is a good company to deal with and their products work exactly as described. Their packaging in homeowner sized quantities is an additional benefit to many users.

My project involved removal of a concrete step from a patio slab but I wanted to retain the edge of the slab for support of a wood deck. It took some creative drilling on my part but the project was very successful and far easier to do than jackhammering. In addition, this method saved the cost and hassle of pouring a new section of the slab as I would have had to with jackhammering. I had to rent a large hammer drill for the Dexpan holes but the smaller holes for the fracture lines were drilled with my Bosch hammer drill. Total drill time was about an hour and a half for the large holes and about the same for the smaller fracture line holes. Holes were about 14" deep, horizontally under the step, top of slab. I glued PVC pipe elbows into the openings to allow complete filling of the holes which is critical in horizontal applications.

Dexpan works like a very slow motion explosive so it could be tagged as an 'expansive'. I poured the Dexpan at about 3:00 PM and the breaks were complete when I returned the next morning.
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