DYNOMIX™ WR
Document type: Tech Info
Categories: Coal, Construction, Metal, Packaged Explosives, Stone

TECHNICAL DATA SHEET
DYNOMIX™ WR PRODUCT DESCRIPTION
 DYNOMIX WR is a premixed, free-flowing, limited water
Booster Sensitive Explosive resistant explosive that uses a special mixture of ingredients to coat surface of the
 ANFO prills. This coating helps block water penetration and enables detonation in
 damp borehole conditions. In certain situations, DYNOMIX WR can fill the gap between
 SDS regular ANFO and packaged explosive products and is available in various sizes and
 Properties #1009
 types of bags.

Density (g/cc) Avg 0.87
 Energy a
 (cal/g) 880
 (cal/cc) 748
 a,b
 Relative Weight Strength 1.00
 a,b
 Relative Bulk Strength 1.04
 Velocity (m/sec)
 c
 3,460
 (ft/sec) 11,350
 Detonation Pressurec (Kbars) 25
 Gas Volume (moles/kg)
 a
 43
 APPLICATION RECOMMENDATIONS
 Water Resistance Limited
 • To produce consistently good results, wet blastholes must be dewatered. After
 Fume Class IME1 dewatering, check the borehole to ensure there is no re-entering or residual water. As
 soon as the borehole is confirmed dry, immediately prime, load and stem
 • NEVER pour DYNOMIX WR into boreholes where standing water is present
 a
 All Dyno Nobel Inc. energy and gas volume values are calculated using PRODETTM, the
 computer code developed by Dyno Nobel Inc. for its exclusive use. Other computer • DYNOMIX WR is suitable for use in ground with a temperature range of 0°C to 55°C
 codes may give different values (32°F to 131°F). For applications in ground with temperatures outside this range
 contact your Dyno Nobel representative
 b
 ANFO = 1.00 @ 0.82 g/cc
 c
 Confined @ 75 mm (3 in) diameter • DYNOMIX WR is not designed for use in ground conditions where reactive sulphides
 are present
 • Minimum recommended diameter is 75 mm (3 in) when poured
 • ALWAYS use an adequately sized cast booster or packaged explosive with a high
 detonation pressure for priming

Hazardous Shipping Description
 • Explosive, Blasting, Type B, 1.5D, UN 0331, II

Product Disclaimer: Please see reverse side.

TECHNICAL DATA SHEET
DYNOMIX™ WR APPLICATION RECOMMENDATIONS - continued
 • ALWAYS double prime DYNOMIX WR. One primer should be positioned 0.3 m (12
Booster Sensitive Explosive in) off the bottom of the borehole and the second primer positioned further up the
 DYNOMIX WR column
 • ALWAYS ensure that the second primer is at least 0.3 m (12 in) above the borehole
 depth where the water-level was before dewatering. Additional primers are ALWAYS
 recommended whenever separation or blockages in the poured DYNOMIX WR
 column are suspected to have occurred during loading
 • Whenever standing water remains in a borehole after dewatering, a water- resistant
 packaged explosive should be loaded after priming until its column rises out of the
 water before loading DYNOMIX WR. Then, and only then, should DYNOMIX WR be
 loaded. At least one additional primer should be located in the DYNOMIX WR column
 in this situation
 • NEVER leave DYNOMIX WR in loaded boreholes overnight

TRANSPORTATION, STORAGE AND HANDLING
 • DYNOMIX WR has a shelf life of 3 months from date of manufacture when stored at
 temperatures between -17º C and 32º C (0º F and 90º F).
 • Inventory should ALWAYS be rotated by using the oldest materials first.
 • For recommended good practices in transporting, storing, handling and using this
 product, see the Safety Library Publications of the Institute of Makers of Explosives.
 • DYNOMIX WR must be transported, stored, handled and used in conformity with all
 applicable federal, state, provincial and local laws and regulations.

ADDITIONAL INFORMATION – Visit dynonobel.com for Brochures and Case Studies related to this product.

Product Disclaimer: Dyno Nobel Inc. and its subsidiaries disclaim any warranties with respect to this product, the safety or suitability thereof, or the results to be obtained, whether express or implied, INCLUDING WITHOUT
LIMITATION, ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE AND/OR OTHER WARRANTY. Buyers and users assume all risk, responsibility and liability whatsoever from any and
all injuries (including death), losses, or damages to persons or property arising from the use of this product. Under no circumstances shall Dyno Nobel Inc. or any of its subsidiaries be liable for special, consequential or
incidental damages or for anticipated loss of profits.