We manufacture and distribute fine chemicals and laboratory
products - with quality and delivery you can count on every time.
Get excellent sealing capabilities for many applications with Spectrum's selection of black rubber lab stoppers. These black stoppers are flexible, elastic and have low heat build-up.
Spectrum specializes in providing the top black rubber lab stoppers but if you do not see the product you require, just contact our chemical specialist at 800-772-8786. cGMP Certified Facilities and 45,000 chemicals - Trust Your Ingredients!