Blanket 120: 120 kg/m³ rockwool blanket rated to 750°C

Vulcanite Armor Blanket 120: 120 kg/m³ basalt-dolomite rock wool stitched to galvanised or stainless steel wire mesh. Hot surface performance 750°C (ASTM C411/C447), thermal conductivity 0.030 W/mK at 50°C (ASTM C335), water vapour sorption ≤0.2% by weight (ASTM C1104). Complies with ASTM C592 Type I and III.

ASTM C592 Type I and III compliant
Flame Spread Index 0 (ASTM E84)

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Vulcanite Armor Blanket 120: 120 kg/m³ rock wool blanket rolls stitched to galvanised wire mesh

Vulcanite Armor rock wool blanket rolls, foil faced and wire mesh stitched

Vulcanite Armor rock wool blanket fitted to industrial pipework

Rock wool blanket installed and clad on a process pipe

Cross section through an insulated pipe showing the rock wool blanket thickness

Close-up of the stitched wire mesh facing on Vulcanite Armor rock wool blanket

Vulcanite Armor rock wool blanket roll partly unrolled

Dispatch within 24 hours. Delivery within 72 hours. Collection from Vulcanite, Centurion.

40mm × 1200mm × 5m6 m²/roll · galvanised meshOn backorder

R1 551,03per roll Incl. VATR1 348,72 Excl. VAT · R258,51/m²

50mm × 1200mm × 5m6 m²/roll · galvanised meshOn backorder

R1 702,24per roll Incl. VATR1 480,21 Excl. VAT · R283,71/m²

75mm × 1200mm × 3m3.6 m²/roll · galvanised meshOn backorder

R1 514,85per roll Incl. VATR1 317,26 Excl. VAT · R420,79/m²

100mm × 1200mm × 3m3.6 m²/roll · galvanised meshOn backorder

R2 067,27per roll Incl. VATR1 797,63 Excl. VAT · R574,24/m²

Special project pricing

50 rolls or more, or a thickness we do not list

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Density 120 kg/m³ (EN1602)
Hot surface performance 750°C (ASTM C411 / ASTM C447), the highest of the three grades
Thermal conductivity 0.030 W/mK at 50°C, 0.035 W/mK at 100°C, 0.089 W/mK at 350°C (ASTM C335), lowest k-value of the range at 50°C and 100°C
Water vapour sorption ≤0.2% by weight (ASTM C1104); water absorption <1 kg/m² (EN1609 / BS 2972)
Flame Spread Index 0, Smoke Developed 20 (ASTM E84); linear shrinkage max 4% (ASTM C356)

Technical parameters

Blanket 120 technical parameters from the Vulcanite Armor datasheet
Property	Blanket 120	Standard
Density	120 kg/m³	EN1602
Hot surface performance	750 °C	ASTM C411 / ASTM C447
k-value at 50°C mean	0.030 W/mK	ASTM C335
k-value at 100°C mean	0.035 W/mK	ASTM C335
k-value at 150°C mean	0.053 W/mK	ASTM C335
k-value at 200°C mean	0.057 W/mK	ASTM C335
k-value at 250°C mean	0.066 W/mK	ASTM C335
k-value at 300°C mean	0.078 W/mK	ASTM C335
k-value at 350°C mean	0.089 W/mK	ASTM C335
Linear shrinkage	max 4 %	ASTM C356
Flame Spread Index	0	ASTM E84
Smoke Developed Index	20	ASTM E84
Water absorption, partial immersion	< 1 kg/m²	EN1609 / BS 2972
Standards	EN1602, ASTM C335, ASTM C411, ASTM C447, ASTM C356, ASTM E84, EN1609, BS 2972, ASTM C592 Type I and III, ASTM C1104

Applications

Boilers
Steam pipes
Kiln and furnace exteriors
Smelting process piping
Any pipe, vessel or duct with a hot-face temperature between 700°C and 750°C

Choose this grade if

The hot surface is between 700°C and 750°C, or the specification calls for the lowest conductivity at 50 to 100°C mean (0.030 / 0.035 W/mK) and the lowest vapour sorption (≤0.2%). Do not specify above 750°C.

Compare the range

Blanket 120 questions

What is the maximum hot surface temperature for Blanket 120?

Blanket 120 is rated for hot surfaces up to 750°C, tested to ASTM C411 and ASTM C447.

How does Blanket 120 compare on thermal conductivity?

Blanket 120 has the lowest thermal conductivity of the three grades at 50°C and 100°C mean temperature, at 0.030 W/mK and 0.035 W/mK.

Does Blanket 120 absorb water?

Water absorption for Blanket 120 is below 1 kg/m² under partial immersion, tested to EN1609.

Full technical parameters on the datasheet

Every grade, every mean temperature and every test standard on one sheet.

Download Datasheet PDF, 536 KB