622 Assembled Roving for Centrifugal Casting process is coated with a silane-based sizing, compatible with unsaturated polyester resins. 622 is produced by using a proprietary sizing formulation and a special manufacturing process, offering very fast wet-out and low resin demand. These features enable maximum filler loading and thus minimum manufacturing cost for pipes. The product is mainly used to make centrifugal casting pipes of various specifications and also in some special spay-up processes.

Glass type	E6
Sizing type	Silane
Typical filament diameter (um)	12
Typical linear density (tex)	2400
Example	E6DR12-2400-622

Item	Linear density variation	Moisture content	Sizing content	Stiffness
Unit	%	%	%	mm
Test menthod	ISO 1889	ISO 3344	ISO 1887	ISO 3375
Standard range	± 4	≤ 0.07	0.95 ± 0.15	130 ± 20

Item	unit	Standard
Typical packaging method	/	Packed on pallets.
Typical package height	mm (in)	260 (10.2)
Package inner diameter	mm (in)	100 (3.9)
Typical package outer diameter	mm (in)	275 (10.8)		305 (12.0)
Typical package weight	kg (lb)	17 (37.5)		23 (50.7)
Number of layers	layer	3	4	3	4
Number of packages per layer	Pcs	16		12
Number of packages per pallet	pcs	48	64	36	48
Net weight per pallet	kg (lb)	816 (1799.0)	1088 (2398.6)	828 (1825.4)	1104 (2433.9)
Pallet length	mm (in)	1140 (44.9)		1270 (50.0)
Pallet width	mm (in)	1140 (44.9)		960 (37.8)
Pallet height	mm (in)	940 (37.0)	1200 (47.2)	940 (37.0)	1200 (47.2)

In general, fiberglass products should be protected from moisture. The best storage conditions are temperature -10℃～35℃, relative humidity ≤80%. To ensure personnel and product safety, pallets should not be stacked more than three layers high. When stacking of overlapping products is required, move the upper tray correctly and smoothly.◎ Please keep in the original packaging when not in use. This product is best used within twelve months. ◎ Please pay attention to product protection when using, to prevent the product from being scratched and other damage, to prevent affecting the use effect. ◎ Please properly and reasonably adjust the ambient temperature and humidity before use to achieve the best use of the product. ◎Please do regular maintenance on operating tools such as knife roller and top roller.