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The bulk of our emulsified asphalt products are manufactured in-house at our facility in Perris, California. By manufacturing our emulsified products in-house, we can assure quality control. Giving you peace of mind knowing that we personally guarantee every gallon of product that we manufacture. You can rest-assured knowing that when you purchase Goldstars line of emulsified asphalt products you’re going to receive product on-time, experience superior performance in the field, and have results that pass the test of time… We guarantee it.