The difference is primarily the thermal and chemical compatibility. Traditionally the polyester is used on steel ring bags and polypropylene on the plastic flange. Our 100% polypropylene filter bag is manufactured from FDA compliant material for food grade applications. back to top) Why does my filter bag seem longer than my support basket? Filter bags are basically a two dimensional flat tube with a collar. It must fill up void spaces of a three dimensional support basket.

Polyester films, like USI OptiClear, are clearer and a higher quality than lower grade films, which tend to be foggy. Premium films also endure extreme environments and severe stress conditions more favorably. Films with higher polyester content are more rigid and feel thicker than films with more adhesive content. Polypropylene film is softer than polyester, but still has excellent clarity.

Polyester rope is bright white where as cotton rope is more of a beige color. Polyester rope will last longer outdoors then cotton rope. Some people say that cotton rope is more comfortable then polyester. This is largely a matter of opinion.

Lycra (Spandex) is softer and has greater stretch capability allowing for more flexibility. Its fabric has a rubberized elastic material. This is especially important for Synchro Swimmers. However due to the rubberized elastic material Lycra tends to breakdown earlier than Polyester because the chlorine attacks the rubberized elastic material in the fabric.

Polypropylene (PP) is a plastic with good chemical resistance, is strong, and has a high melting point making it good for hot-fill liquids. Polypropylene is found in flexible and rigid packaging to fibers and large molded parts for automotive and consumer products.

Grace Tri-Flex 30 synthetic roofing underlayment is a premium water-shedding underlayment. Unlike conventional roofing felts, it does not absorb water and can be used to "dry-in" roofs for up to 6 months before the primary roof coverings are applied. It is stronger than #30 felt and withstands high wind conditions; it is lighter than #30 felt and covers more area.

Polyester is a man-made fabric which results in a garment which is extremely light and comfortable to wear, with excellent quick drying and chlorine resistant properties. Polycotton is a more natural fabric and feels more like the t-shirts that you put on your children. This is ideal for infant or sensitive skins, but takes a little longer to dry than polyester. Both fabrics achieve the same SPF of 50+ and fit in the same way.

a) Acetate: Acetate provides excellent drapability and softness, and is moth resistant. Acetate is dry-clean only. b) Polyester: Polyester is strong; moth resistant; resistant to stretching, most chemicals, and abrasion; is crisp and resilient when wet or dry; retains heat-set pleats and creases; is more wrinkle resistant than Acetate; and is easily washed in ordinary washers and dryers.

For orders less than $100, your shipping charges will be calculated upon checkout. Note that you will learn your shipping charges BEFORE you finalize your order. When you checkout, simply select Standard-Residential (if delivery is to a home) or Standard-Business (if delivery is to a business). If you choose Standard-Residential or Standard-Business, based on what you order and the delivery address, we will ship your order either via U.S. Mail, FedEx Ground, or FedEx Home Delivery.

They are not recommended for use in high humidity or exposure to water, as volume swell and reduction of properties may result. Because of inherent advantages in low heat build-up, polyether-based urethanes are recommended for applications undergoing medium to high stress.

A quality felt paper will lay flat and won't "tear-out" as the installer walks on it. "High performance" underlayment may have fiberglass reinforcement for added strength and to further reduce the possibility of wrinkling before the shingles can be applied.

One "yes" answer suggests a possible alcohol problem. More than one "yes" answer means it is highly likely that a problem exists. If you think that you or someone you know might have an alcohol problem, it is important to see a doctor or other health care provider right away. They can help you determine if a drinking problem exists and plan the best course of action.

There are typically three explanations: 1) the Felt manufacturing process, 2) the application the Felt is under, and/or 3) the type fiber used to manufacture the felt is not suitable for the application. The Felt Manufacturing Process : requires a set "needling" procedure to insure interlocking of the fibers so they will not "pull" out or simply "lay" on the surface.

Yes. The material has no negative effect on health. It causes no itching or skin irritation. Heat-welded polyester does not release fibres into the air (which is a cause of medical concern). This is one reason why many hospitals and buildings with air-conditioning systems choose NOVAtherm and NOVAhush.

Laminating resin is greenish blue in color and is the basic first coat of resin; it is used to adhere the cloth to the blank (this resin will only dry tacky and not sandable!) Sanding or hot coat resin or filler coat is almost the same thing; it is lam resin with surfacing agent (styrene monomer and paraffin wax) mixed in. Paint it on the laminated surfboard to fill the fiberglass weave and make the board sandable. Gloss/finish Resin is pink in color and is the final coat of resin.

Yes, we do, but in most cases, surfaces such as Teflon, polyethylene and polypropylene are not easily bonded and require a surface treatment to achieve any desirable bond strengths.

UltraFiber 500™, with all its benefits, offers a significant combined advantage versus polypropylene fibers - superior finishing, excellent crack reduction, improved hydration, better bonding with cement, higher fiber tensile strength, cost effective bulk dispensing, and more.