Amazing Stuff!

Once you use this, you will never look at a boulder the same way again. Drilling the holes is time consuming, but it is nothing compared to the work you would have to do with a jackhammer. I have been using Dexpan for a couple years now, and it has never disappointed me. I highly recommend it.

[Rewarded Review] Quick delivery

Quick delivery

Yes worked as promised. Cracked two piers in the water over 3 feet wide and 6 foot tall.

The best I will be geting more

This product worked exactly like it said it would. I only drilled 1 1/4” holes and it still broke the concrete apart as expected.

It works

This is a more affordable way to purchase this product, instead of the individual 11 pound packages. You will need more than you think since 11 pounds will only fill about six holes 1.5-inch in diameter by 16 inches deep. It is difficult to NOT spill some when filling the holes because of overfilling. Using a big funnel helps and drilling vertical holes is best. Rewetting any holes that did not fracture with more water and giving it a second day to work is effective and worth the wait.

Works for large or small jobs

We drilled about 3,500' of holes and used this cracking agent to cube up a lot of very hard Sierra Granite into 1x1x1-3' blocks. It works as advertised. Just stick to the recommended temperature range.

+1 more

Better than ammonium nitrate and nitromethane....

Better than ammonium nitrate and nitromethane.

Dexpan works - after hours of drilling!

Dexpan works, but you have to drill 1 1/2 inch holes deep into the granite rock (or whatever you are breaking up). We rented a large air compressor and large impact drill with several 1 1/2" bits. Holes drilled between 10" to 24" deep on approx 12" centers. Dexpan did crack the large hard granite boulders (the size of a VW bug and larger, some cracking within 12 hours, others taking nearly 48 hours to crack. But it does work!

Dexpan, it works

works as advertised. One large rock took 48hrs to crack. 200 holes, 6 boxes! a lot of drilling

I had a 14000 lb piece of concrete with rebar...

I had a 14000 lb piece of concrete with rebar that had been a base for a wind machine in a vineyard. Without Dexpan it would still be out back. I tried a rental 65 lb jackhammer but Dexpan was faster, easier and more effective. You do need a larger hammer drill and a 1.5 inch bit. Highly recommend this product.

Excellent Results

Excellent product! I have used it many times over the years to break up Ironstone on my property in Lancaster,PA. I would recommend this to anyone. I rarely endorse anything but this is worth the exception. It has always surprised me with the amount of power this power has!

Broke thru my granite wall

My order arrived promptly. My target was a natural, partially buried granite wall, 8’ wide at high altitude (7200’), that needs to be trenched. I followed directions exactly, drilling 14: 1 1/2” holes 16” deep, 12” apart into stratified granite. My tools were a Hurcules SDS Max drill from HarborFreight, and a 24” Milwaukee bit. 2 bags, mixed per directions filled the holes perfectly. I was concerned that the DexPan might not work, becouse I was drilling thru multiple layers and strata of granite, sometimes with dirt in between layers. Also, we had heavy rain after I poured the DexPan. Although I tarped the area, I could not contain the rain runoff But after 24 hours, there were deep cracks throughout my wall. I’ve been fighting this granite wall for a long time. Sledge hammer, pick ax, jack hammer, diamond cutting tools… nothing worked until DexPan

I drilled and poured over 40 holes and only three...

I drilled and poured over 40 holes and only three worked. would not recommend!

This product worked great for breaking up lava cap boulders...

This product worked great for breaking up lava cap boulders (Northern CA/ Sierra foothills region.) I was able to break apart the top portion of a rock that was buried underneath the lawn, so I used the "trenching" method described in the instructions of drilling vertical holes on the top of the rock and then angled holes around the edge of the rock right below grade. Be patient- the rock cracked after a day or two, but the cracks continued to expand for almost a week. So just take your time and let the product do its job. Once the cracks had stopped expanding, I used a San Angelo pry bar and wiggled out all the broken up boulders, leaving a jagged rock surface below grade that I can now put some dirt over and finally have a lawn without the top of a boulder sticking out. I did have a quick question about forecast temperature and which dexpan type to use- the customer service rep was very helpful and knowledgable. He explained that even though the nighttime temps in my area went down to 40-45 degrees F at night, the Type 2 would still be the best product for the job since the day temps were up around 70.

Dexpan demolition grout

Leave it alone for 48 hours. Pretty impressive results. I didnt follow directions well. I didnt drill enough holes or the right size or close enough together. It still worked amazingly well.

Unbelievable Results

I had 4 giant rocks in my yard that I wanted gone. Two were very deep and two were mostly surface. I rented a rock drill and drilled around 50 holes and the rocks were busted like crazy. I waited a day and they split even more. The product works!!

Amazing! Save money and time!

Dexpan works as well as I could have hoped for! Be sure that drilled holes do not have any porosity or the slurry will leak through - as it is not very viscous. The slab was 6-7 inches thick and Dexpan fractured it without a problem within 24hrs.

This stuff is excellent....

This stuff is excellent.

Very good product for breaking large rocks. After 24 hours...

Very good product for breaking large rocks. After 24 hours you can see the rocks splitting . In 48 hours it had 1/2 inch cracks, rock was very easy to remove.