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🛠️ Patch it like a pro — durable floors, zero downtime!
QuestMark 2105 is a professional-grade epoxy mortar designed for patching and resurfacing concrete floors. With a tensile strength of 6700 PSI and a pot life of 20-30 minutes at 70°F, it offers a reliable balance of workability and durability. This 5-gallon light gray unit covers approximately 19.15 sq ft at 1/8" to 1/4" thickness, allowing for efficient repair of cracks, holes, pits, and spalling. It supports quick recoating and foot traffic, making it ideal for projects requiring minimal downtime. Proudly made in the USA, it’s a trusted choice for maintaining high-performance concrete surfaces.
| ASIN | B08BX79C6J |
| Best Sellers Rank | #282,912 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #680 in Wall Surface Repair Products |
| Brand Name | QuestMark |
| Color | Light Gray |
| Compatible Material | Concrete |
| Container Type | Pail |
| Customer Reviews | 4.1 4.1 out of 5 stars (36) |
| Full Cure Time | 2-7 Days |
| Item Form | Mortar |
| Item Package Quantity | 1 |
| Manufacturer | CentiMark Corporation |
| Material Type | Epoxy |
| Model | 2105 |
| Part Number | CM2105 |
| Tensile Strength | 6700 Pounds Per Square Inch |
| Unit Count | 640 Fluid Ounces |
| Viscosity | Moderate |
| Viscosity Level | Medium |
| Volume | 5 Gallons |
| Water Resistance Level | Water Resistant |
Q**.
Easy to use.
Worked very well. Limited instructions though but since I knew what I wanted and how to use it I had no problems. Preparation is key. Now only time will tell how it holds up.
S**E
WHO is measuring this stuff??
Save your time and money and buy something else! I got a total of 4 of these-I bought 2, and the company (a long time ago) sent me one replacement, so that's the one star, for that one time I got customer service. I then bought another, for a total of 4. Here's my complaint: out of the 4 units I got, no 2 were alike in the measured amounts of the included 2 part epoxy. The first 2 had epoxy content that was off by a full 50% - one of the units had half as much "epoxy" as the other, and a way different amount of hardener as well. I actually got in touch with them that time, and they sent me another unit. THAT unit didn't match either one of the first 2. When I mixed the closest 2 together, it took OVER 10 days for the epoxy to cure- I could still push my finger into the surface at day 8. I never bothered to mix up the last one- I have NO idea what the actual ratio of part A and Part B is supposed to be, and there's no way to tell by comparing the 4 different units. I called their 800 number a total of 5 times across one week and left 5 messages, and got zero reply as of a month later.
S**Y
I don’t need anything thank you
Perfect thank
C**Y
Quick,easy
Finally got to use this product. Quite happy with results, goes on like playdough dries brick hard in one hour.
T**E
Works great
We used this to patch a couple bad spots in the concrete of our warehouse floor. Holds up well with heavy use.
S**A
Good product!
I used this product on my front steps. Looks good.
J**N
Not what I expected
Didn't realize I had to mix anything - was looking for product I could use a little at a time not the whole thing at one time. Not only 1 but 2 cans sent with a sand like product that needed to be mixed together. I didn't see any listing of how long it takes to start drying or completely dry - not even a time range estimate. In process of returning.
M**R
Waste of money
There is very little product in this bucket and the small amount we used does not get hard.
Trustpilot
5 days ago
2 months ago