The tile adhesives and grouts manufacturer also saw a significant increase in sales of the company's levellers range, with figures showing a 38% uptake compared with 2010.
Overall sales to the merchant sector were up 11%.
Dunlop Adhesives' brand manager Debi Bailey said: "We are thrilled with these figures. It's certainly not an easy time for the industry as a whole, but we hope that these results show that there is still strong industry demand for well-crafted and well-delivered products.
"We've worked really hard to make the Dunlop brand synonymous with quality and the strength of the brand has allowed the company to continue to grow, even when the economy as a whole has struggled."