SEMTEX®

SEMTEX® 1A is a plastic explosive for special use on the basis of an inexplosive plasticizer with penthrite as an active component. The explosive contains a marking substance for pre-explosive detection.

It is used primarily for destruction works, underwater blasting works (up to 100m), special blasting works and as an initiator. The explosive can be split and shaped under the conditions indicated in th einstruction manual for its use.

Classification:  UN0084, EXPLOSIVE, BLASTING, TYPE D, 1.1 D

Parameter Unit of measure Semtex® 1A
Explosion heat
kJ/kg
2,648
Gas Volume
dm3/kg
1,140
Temperature of explosion
°C
1,991
Oxygen balance
% O2
-63,4
Content of high explosive
%
PETN 83
Velocity of detonation
m/s
min. 7,000 typ. 7,300
Brisance according to Heiss
mm
min. 21
Relative working ability
%
min. 72
Density
kg/m3
min 1,340 typ. 1,400
Firing
–
Detonator no. 8
Water resistance
–
10 hrs / 1MPa
Smallest permitted diameter
mm
3
Shelf life
year
2
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SEMTEX® 1H is a plastic explosive for special use on the basis of an inexplosive plasticizer with penthrite and hexogene as active components. The explosive contains a marking substance for pre-explosive detection. It is used primarily for destruction works, underwater blasting works (up to 100m of water column) and special blasting works. The explosive can be split and shaped under the conditions indicated in the instruction manual for its use.

Classification:  UN 0084, EXPLOSIVE, BLASTING, TYPE D, 1.1 D

SEMTEX® 10 is a plastic explosive for special use on the basis of an inexplosive plasticizer with penthrite as an active component. The explosive contains a marking substance for pre-explosive detection. It is used primarily for special destruction and blasting works, underwater blasting works (up to 100m of water column). This black explosive can be shaped as well and has adhesive properties. The explosive can be split and shaped under the conditions indicated in the instruction manual for its use.

Classification:  UN 0084, EXPLOSIVE, BLASTING, TYPE D, 1.1 D

Packaging: The SEMTEX® 1H and SEMTEX® 10 explosives are packaged in waxed paper. They are supplied in the form of bricks with a mass from 250 to 3,000 g according to the customers requirements. There are 24 or 25 kg of explosives in the transport packaging.

Parameter Unit of measure Semtex® 1H Semtex® 10
Explosion heat
kJ/kg
2,765
3,679
Gas Volume
dm3/kg
1,171
1,005
Temperature of explosion
°C
2,073
2,759
Oxygen balance
% O2
-64
-44
Content of high explosive
%
RDX/PETN 85
PETN 86
Velocity of detonation
m/s
min. 7,000 typ. 7,500
min. 7,200 typ. 7,600
Brisance according to Heiss
mm
min. 21
min. 21
Relative working ability
%
min. 69
min. 65
Density
kg/m3
min 1,400 typ. 1,460
min 1,400 typ. 1,510
Firing
–
Detonator no. 8
Detonator no. 8
Water resistance
–
10 hrs / 1MPa
10 hrs / 1MPa
Smallest permitted diameter
mm
5
4
Shelf life
year
5
10

SEMTEX® 10-SE is a plastic explosive for special use on the basis of an inexplosive plasticizer with penthrite as an active component. The explosive contains a marking substance for pre-explosive detection. It is used for the explosive hardening of metallic materials. The explosive is white, can be well shaped and has good adhesion; it is supplied in a sheet charge form. The explosive can be split and shaped under the conditions indictaed in the instruction manual for its use.

SEMTEX® S 30 is an explosive for special use with penthrite as an active component. It is used for explosive cladding and welding of metals. SEMTEX® S 30 is a white bulk material.

Packaging: SEMTEX® 10-SE is supplied in the form of a sheet charge 300 x 2 mm and a length corresponding to 10 kg, i.e. approximately 10 m. The explosive charge is covered with a PE foil on both sides and wound on coil. One box contains 2 rolls = 20 kg. SEMTEX® S 30 is packaged into 20 or 25 kg PE bags and a transport package.

Parameter Unit of measure Semtex® 10-SE Semtex® S 30
Explosion heat
kJ/kg
2,709
1,277
Gas Volume
dm3/kg
1,100
420
Temperature of explosion
°C
1,975
1,023
Oxygen balance
% O2
-59
-3
Content of high explosive
%
PETN 78
PETN 30
Velocity of detonation
m/s
min. 6,700 typ. 7,100
min. 2,000 typ. 2,200
Brisance according to Heiss
mm
min. 14
min. 9
Relative working ability
%
min. 70
–
Density
kg/m3
min 1,450 typ. 1,470
min 1,000 typ. 1,050
Firing
–
Detonator no. 8
Detonator no. 8
Water resistance
–
0.3MPa
–
Smallest permitted layer
mm
1.5
10
Shelf life
year
2
1

SEMTEX® C-4 and PW 4 are plastic explosives for special use on the basis of an inexplosive plasticizer with Hexogene (RDX) as an active component. The explosive contains a marking substance for pre-explosive detection. These explosives of the SEMTEX® type have the highest velocity of detonation.

Classification:  UN 0084, EXPLOSIVE, BLASTING, TYPE D, 1.1 D

Parameter Unit of measure Semtex® C-4 Semtex® PW 4
Explosion heat
kJ/kg
3,780
3,470
Gas Volume
dm3/kg
1,090
1,140
Temperature of explosion
°C
2,800
2,550
Oxygen balance
% O2
-48
-55
Content of high explosive
%
RDX 90
RDX 88
Velocity of detonation
m/s
min. 7,600 typ. 7,900
min. 7,500 typ. 7,750
Brisance according to Hess (2 plate, 50g)
mm
21
20
Relative working ability
%
77
75
Density
kg/m3
min 1,500 typ. 1,560
min 1,500 typ. 1,540
Firing
–
Detonator no. 8
Detonator no. 8
Water resistance
–
10 hrs / 1MPa
10 hrs / MPa
Shelf life
year
10
10

SEMTEX® 90 is a plastic explosive for special use on the basis of an inexplosive plasticizer with penthrite and hexogene as active components. The explosive contains a marking substance for pre-explosive detection. It is used primarily for destruction works, underwater blasting works (up to 100m of water column) and special blasting works. The explosive can be split and shaped under the conditions indicated in the instruction manual for its use. Shelf life is 10 years.

Classification:  UN 0084, EXPLOSIVE, BLASTING, TYPE D, 1.1 D

Parameter Unit of measure Semtex® 90 P Semtex® 90 PH Semtex® 90 H
Explosion heat
kJ/kg
4,438
4,319
4,063
Gas Volume
dm3/kg
928
965
1,029
Temperature of explosion
°C
3,139
3,092
2,927
Oxygen balance
% O2
-33
-36
-41
Velocity of detonation
m/s
min. 7,250 typ. 7,400
min. 7,400 typ. 7,650
min. 7,500 typ. 7,750
Brisance according to Hess (2 plate, 50g)
mm
min. 18
min. 18
min. 18
Relative working ability
%
min. 85
min. 85
min. 85
Density
kg/m3
min 1,500 typ. 1,520
min 1,520 typ. 1,550
min 1,540 typ. 1,560
Firing
–
Detonator no. 8
Detonator no. 8
Detonator no. 8
Smallest permitted diameter
mm
2
4
8
Shelf life
year
10
10
10