370-SD™ /4,5 kg

Accu-Cast™ 370-SD™ alginate is a fast curing, firm alginate mold material that is ideal for socket duplication in the creation of prosthetics and orthotics. This firm alginate can be poured into a prosthetic socket to assist
in the fitment of artificial limbs. 370-SD™ has a set time of about 3 minutes when mixed with water that has a temperature of 21°C.

- Mix Ratio by Weight: 1 part powder to 4 parts water by weight

- Mix Ratio by Volume: 2 parts powder to 3 parts water by volume

Pot Life: 2 minutes*- Cure Time: 3 minutes*- Color : Off-White

*Depending on water quality (see “Water Quality” section below) and water temperature set to 21°C

Instructions

PROCESSING RECOMMENDATIONS

Safety - Wear safety glasses to minimize contamination risk. Use only in a well-ventilated area. Wear a NIOSH-approved N95 dust mask when processing powdered material.

WARNING: IRRITANT TO EYES & MUCOUS MEMBRANES. Do not get in eyes, or in mucous membranes. Do not take internally. Do not breathe particulates. Use only with adequate ventilation.

Preparation - These products have a limited shelf life and should be used as soon as possible. Materials should be stored and used in a warm environment 23°C. Mixing containers should have straight sides and a
flat bottom. Mixing sticks should be flat and stiff with defined edges for scraping the sides and bottom of your mixing container. 370-SD™ powder may get warm in storage/shipping during the summer months which may
cause the powder/water mixture to set too fast. To remedy, store 370-SD™ alginate in a cool area 16°C - 21°C for 24 hours before using. Do not allow moisture to come into contact with unused 370-SD™
alginate powder.

Because no two applications are quite the same, a small test application to determine suitability for your project is recommended if performance of this material is in question.

MEAUSURING, WATER,QUALITY AND WATER QUALITY

Measuring - 370-SD™ is mixed 1 part powder to 4 parts water by weight or 2 parts powder to 3 parts water by volume. If measuring by volume, fill measuring cup with powder, and level off the top. If measuring by
weight, use an accurate gram scale. You can vary the water level somewhat to change the consistency of the mixture. Less water will make the alginate thicker. More water will make the mixture thinner and easier to pour. Be Careful... too much water may result in the mixture not curing! Since powder is a compressible material, by weight mix ratio is recommended.

Water Quality - If water quality is in question, use distilled water heated to the correct temperature using a stove top or microwave oven if needed. Check water temperature using a thermometer. Water that has a high mineral content (calcium, phosphate, etc.) may cause any alginate to become “lumpy” or not set properly. If you have a water softener, the water will delay the pot life and cure time of the alginate. You can compensate for this by increasing the temperature of the water. A small-scale test is recommended prior to mixing large amounts.

Water Temperature - At 21° C, 370-SD™ will have a working time of approximately 2 minutes and a demold time of about 3 minutes. Warmer water will cause the material to cure faster (less working time). Colder water will give a longer working time and slower demold time.

MIXING ALGINATE

Mixing - Alginate can be mixed by hand in a mixing container using a flat mixing stick with defined edges for scraping the sides and bottom of your mixing container as you mix. Alginate material can also be mixed in the bag it comes in. Remove all jewelry and watches from hands before attempting to mix the material in the bag to prevent puncture to the bag. Alternatively, you can mix the material using a turbine mixer (mechanical
mixer) and portable drill. Wearing a NIOSH-approved N95 dust mask is recommended before mixing powdered alginate.

CURING AND PERFORMANCE

Curing - Cure time is approximately 5 minutes when mixed with water at 21°C. Thinner molds made with more water in the mix may set up longer.

Performance - Cured alginate molds exhibit moderate tear strength and are firm but flexible. Mold is temporary and must be used immediately