

🔧 Cement your legacy with strength that sets you apart!
Hartline 10001 Rockite Expansion Cement is a fast-setting, high-strength repair solution that bonds permanently to metal and concrete. Setting in just 15 minutes and achieving 4500 PSI compression strength within an hour, it’s ideal for anchoring hardware and patching with professional-grade durability trusted by builders for over 50 years.
| ASIN | B000VBRB00 |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #20,225 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #51 in Contact Cements |
| Brand | Hartline |
| Color | No Color |
| Customer Reviews | 4.2 4.2 out of 5 stars (933) |
| Date First Available | June 9, 2006 |
| Full Cure Time | 1 Hours |
| Global Trade Identification Number | 00033122100013 |
| Included Components | Cement |
| Is Discontinued By Manufacturer | No |
| Item Form | Powder |
| Item Package Quantity | 1 |
| Item Volume | 16 Fluid Ounces |
| Item Weight | 1 pounds |
| Item model number | 10001 |
| Manufacturer | Jensen (Home Improvement) |
| Material | Plastic |
| Measurement System | English/Standard |
| Number of Pieces | 1 |
| Package Information | Bottle |
| Part Number | 10001 |
| Product Dimensions | 10 x 5.5 x 9.5 inches |
| Size | No Size |
| Special Feature | Unexcelled strength and bonding qualities, sets in 15 minutes, does not shrink, develops compression strength of 4500 lbs per sqin, grips metal & concrete permanently, anchors bolts, posts, screws, checks, hooks, bowls, washers, railings, rods, signs, pulleys, racks, poles, seats & motors |
| Special Features | Unexcelled strength and bonding qualities, sets in 15 minutes, does not shrink, develops compression strength of 4500 lbs per sqin, grips metal & concrete permanently, anchors bolts, posts, screws, checks, hooks, bowls, washers, railings, rods, signs, pulleys, racks, poles, seats & motors |
| Specific Uses For Product | Construction, Repair, Industrial |
| UPC | 033122100013 |
| Unit Count | 454 Grams |
| Viscosity | Low viscosity |
| Viscosity Level | Low |
| Warranty Description | Warranty |
| Water Resistance Level | Water Resistant |
E**T
Preparation is the key. Follow directions exactly.
Tried many times always with a good result. This product has been around for many decades. Fast and easy to use. Best concrete patch ever. Highly recommended by 50+ year builder.
I**I
Temporary fix up
Great for temporary fix ups for my shower tile fill ins
V**S
Satisfied
Very satisfied with my purchase
T**E
Glad that it worked
This product worked well for me. No clear instruction for mixing. I used 4.5 oz water per AI, but came out very runny. But I used it anyway to see what happens. It took several hours to hardend. To my pleasant surprise, it worked! You may want to use less water for better result. See photos.
M**D
Really thin.
This product would be good for an intricate hole or design in the ground because it is so thin. And it breaks easily if you are pouring only a thin coating.
D**S
Worked Great!
I got this to fix a wobbly mailbox post (which seems to be a popular reason). I thought I had ruined things because I got the mix way too watery. I figured I would have to order more and try again, being more careful with the mixing. BUT a couple of hours after I had poured it around the post and set a pole to prop it up straight, it was solid as a rock.
H**K
Would not recommend has black dye
Has black spots that don’t blend and leave streaks in concrete
D**A
Easy mix
This was nice quick and easy to mix. I used it for a mailbox post and it’s still holding up Good just wish I would’ve ordered more than one box didn’t realize it was a small box, but the little batch did its job
Trustpilot
2 weeks ago
2 months ago