Glass Dynamics LLC offers a full line of dropper bulbs for your dispensing needs. We offer customization with unlimited options utilizing such materials as Monprene®, Natural Rubber, Neoprene®, Nitrile, and Santoprene™ in different sizes, styles and colors. Regardless of your application, Glass Dynamics, LLC can provide you with your dropper bulb solution. Let us meet your needs.

Monprene® | Natural Rubber | Neoprene® | Nitrile | Santoprene™

Monprene® - is composed of saturated styrene block copolymer rubbers and thermoplastic olefin resins. Monprene® exhibits a rubber-like look and feel but has much more to offer.

• FDA Compliant
• Chemical Resistant to Water, Acids, Alcohols, Detergents and Oils
• Excellent UV Stability
• Exceptional Elastic Recovery
• Exceptional Low Temperature Properties
• Upper use Temperature of 120°C (250°F)
• High Tear Strength Resistant to Skin Oils
• High Tensile Strength at Low Hardness
• Odorless

Natural Rubber - Natural rubber is nature's main "ready-made" contribution to the elastomer field. It has high resilience, outperformed only by some of the more recent man-made polyisoprenes and polybutadienes. It exhibits very good tensile and tear properties over a wide stiffness range and has excellent resistance to cold flow. Abrasion resistance is good. Natural rubber has better low-temperature flexibility than most synthetics, but is not as good as silicone rubber. Natural rubber does not age as well as many of the synthetics nor is it as chemically inert as some. It is inferior to many of the synthetics for heat aging, resistance to sunlight, oxygen, ozone, solvents or oils. A general purpose elastomer intended primarily for aqueous liquid fill products in the 4.0 - 7.5 pH range. Natural rubber has the best elasticity of all rubber types. It has very good resistance to abrasion and fatigue. Among the drawbacks are the material’s poor resistance to ozone (weather) and oils and fuels.

Neoprene® - Neoprene is a synthetic rubber material designed to act flexibly, durably, and to resist breakdown by water. Because air and water become isolated in its unique molecular structure, Neoprene is temperately stable. Neoprene is actually more resistant than natural rubber to water, oils, solvents and heat, so it is very useful.

Nitrile - is recommended for applications where resistant to all oils and grease products are required. Withstands abrasion well and is resistant to moderate ozone. Excellent compatibility with ethyl alcohol, ammonia, ammonium salts, animal fats, ASTM Oil categories #1, #2, and #3, as well as detergents.

Santoprene™ - How do you make cosmetics and toiletries packaging stand out in a highly competitive marketplace? One way is to use a unique material for your packaging. Santoprene™

• Durability due to Excelltent Chemical Resistance
• Soft-Touch Sensation
• Flexibility for Special Designs
• Top Quality Luxurious Feel