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Q: I own a house that had a driveway laid in 1969. I bought the house in 1986 and the blacktop was not in good shape at that time. Deep cracks, spider cracks, etc. After purchasing the house I spent a whole summer making my own hot mix consisting of tar, sand and limestone to fill in and smooth the cracks. That fall I sealcoated the blacktop and obtained respectible results. Over the years I repaired cracks and sealcoated on a regular basis. Fast forward to the present time and now, after 40 years it appears that a total dig out and replacement is in order. Before I embark on that project, is it remotely possible that I can coat the entire black top surface (100 ft x 12 ft) with your product and obtain favorable results without completely ripping everything out? The blacktop is 4

A: The indication, from your description of the condition and the 40-plus years of your driveway, tells me that you have surpassed the life of your driveway. It is my recommendation that you totally remove and re-pave it. If you were to use our material it would cost $2,400 to cover your driveway. The life of that repair would be hard to estimate. Good luck with your project.

Posted By Jon Blickenstaff
Mar 1st, 2010 07:16:06 PM
Q: The Roklin Vari-Flo PD 15-50, is that for the Flexset and Flomix or not at all?

A: The Roklin Vari-Flo PD 15-50 is the polymer-dispensing machine for PolyFlexDS - the POLYMER ONLY version of FloMix, FlexSet and Concrete Welder.The appropriate aggregates are applied AFTER the polymer is dispensed. WithFloMix and FlexSet the required aggregate is mixed into the polymer in thebucket to create a polymeric concrete slurry and then placed. The motorizedpail mixer can be used to mix the aggregate into the polymer in buckets.

Posted By Jim Collins
Feb 18th, 2010 09:53:48 AM
Q: My son bought a home that has 5-8 cracks in the concrete basement walls that run from the top to the bottom.. There are also cracks that run horizontal and diagonal along the walls. How could this be repaired. W. Ralls

A: Roklin products work will on flat surfaces and are not used on vertical surfaces. I do not have experience in making this type of repair but there are a number of materials used to repair the problem you describe. You can find them on the internet. I would try www.askthebuilder.com.

Posted By William Ralls
Feb 17th, 2010 10:08:25 AM
Q: I have a parking lot that is 120 feet by 70 feetI need to coat it and fill 4 pot holes. They are 3feet wide by 3 feet and 8 inches deep. What do I need and what is my cost?

A: The two pot holes you described are very large. They would take a large amount of FloMix. It would take 16 FloMix kits and 16 25-pound bags of rock, costing $11,600. Smaller holes could be filled with FloMix and the parking lot seal placed over the repairs within 30 minutes. Good luck with your repair.

Posted By Chris Ramsay
Feb 16th, 2010 03:06:06 PM
Q: Does this stuff work in the cold? We are in Iowa and it gets brutally cold here and if it doesn't work please be honest. All of our potholes have ice in them.

A: Our material works in cold temperatures. You can add catalyst to accelerate the setting time. Our material does not work well in water or ice. The pothole should be dry and free of moisture before using Concrete Welder, FloMix, and FlexSet. In the past we have used a torch to completely dry out potholes. Good luck.

Posted By Tom Kane
Feb 8th, 2010 11:05:30 AM
Q: What is the best way to repair cracks in my concrete driveway and how long can I expect the repair to last?

A: The best way to repair a concrete driveway is to use roklin's Concrete Welder. The repair should last five to ten years or longer.

Posted By Heidi
Jan 15th, 2010 06:25:49 PM
Q: How long can I expect the crack filler to last with winter temps often at 15 degrees and summer temps up to 85 degrees?

A: Several things may effect how long crack filler products will last. Among these are heavy truck traffic, rain, temperature and the age of the highway. Roklin products have been used in the Northeastern United States and have performed well for six to seven years. Concrete Welder and FlexSet work so well because they have bonding qualities and flexibility unlike other repair materials.

Posted By Andrey Kuzyk
Jan 14th, 2010 09:51:54 AM