Two‑Step Sioplas Silane‑XLPE Insulation Compound (YHS4244)

YHS4244

YHS4244 is two‑step (Sioplas) silane‑crosslinked polyethylene compound for low‑voltage cable insulation. It consists of base material YHS4244 (A) and catalyst masterbatch YHS4244 (B). Component A shall be consumed within 24 hours once bag opened. After mixing A and B, the blend must be finished within 8 hours to avoid premature cross‑linking. Recommended cross‑linking options include hot‑water curing (≥90℃, ≥4h for 1mm thickness) or steam curing (≥90℃, ≥6h for 1mm thickness). It features high gel content, excellent low‑temperature performance, low dielectric loss and stable thermal‑aging property for low‑voltage cable manufacture.

✦ Two‑step Sioplas silane‑XLPE ✦ low‑voltage cable insulation ✦ A+B two‑component ✦ natural color XLPE ✦ high gel content ✦ low dielectric loss ✦ excellent low‑temperature brittleness

Technical Data

Technical Specifications

Typical physical property data, subject to batch test reports.

Item	Unit	YHS4244
Tensile Strength(T.S)	MPa	≥13.5
Elongation at Break (E)	%	≥350
Low Temperature Impact Brittle property (-76℃)	N/A	≤15/30
Air Oven Heat Aging (135±2)℃ 168h - Variation ratio of T.S	%	≤±20
Air Oven Heat Aging (135±2)℃ 168h - Variation ratio of E	%	≤±20
Hot Set 200℃ and 0.2 MPa for 15min - Elongation at Load	%	≤100
Hot Set 200℃ and 0.2 MPa for 15min - Permanent Deformation after Cooling	%	≤5
50Hz 20℃ - Dielectric Constant		≤2.35
50Hz 20℃ - Dielectric Loss Angle Factor		≤0.001
Volume Resistivity (1kV、20℃)	Ω·m	≥1.0×10¹⁴
Dielectric Strength	MV/m	≥25
Gelation Content	%	≥60

Recommended

Extrusion Process

Above all are recommendatory temperatures, it need control and regulate according to the actual plastic condition.

Position	Temperature
Cross area(screw)	160℃--190℃
Cross neck(flange)	190℃
Cross Die	195℃--210℃

Processing Guide

Recommended Processing Parameters

Two-step including two parts

A--Base material (grafting material) , A material must used up within 24 hours after open the bag .
B--Catalyst, it can be use normally, if package slight damage it can use after drying , drying condition:70-75 ℃, 2.5-3hours.
※A &B ratio can be adjust to conform customer requirements.
In order to prevent the cross linking in advance , While A and B material were mixed must used up within 8
hours .

Packaging :

A : （23.75±0.02）KGS per bag B : （1.25±0.02 ）KGS per bag ，It should be packed by the aluminium foil bag for inner and Kraft paper bag for outer . Besides, other packaging agreed on by both manufacturer and client can be used
A+B : 500 KGS per carton，[Container 20GP 40HQ] : 1MT/PALLET 8MT 18MT,\1.25MT/PALLET 10MT 22.5MT\ 500KGS/PALLET 10MT 22MT; It should be packed by the aluminium foil bag for inner and carton for outer .

Cross-linking condition

Warm Water Crosslinking: Temperature :≥90℃ ; Insulation thickness( 1mm) :≥ 4 hours
Steam Crosslinking：Temperature :≥90℃ ; Insulation thickness( 1mm) :≥ 6 hours

storage and transport

1) Storage and transport: Keep away from sunshine, rain and soaking during transport. Store in the clean, dry and ventilated warehouses; Storage temperature should be below 48 ℃.
2) Valid period is 6 month while it must be used out in 8 hours after the inner packaging is opened