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Renfert GEO Wax Wire, 250 g Roll · Extra-hard, light blue · 4.0 mm
SKU 043-1140MFR# 6751040
Hardness
Extra-hard, light blue
Diameter
4.0 mm
Renfert GEO light-blue, extra-hard wax wire in 3.0 mm diameter for sprues and pattern work in the dental lab. The extra-hard formulation holds shape under handling. Catalog code 6751030.
Renfert GEO Wax Wire, 250 g Roll is a sprue wire wax from Renfert, part of the GEO line.
This page carries 3 hardness options: Medium-hard, blue, Extra-hard, light blue, Hard, turquoise. This page carries 6 diameter options: 3.5 mm, 3.0 mm, 4.0 mm, 2.0 mm, 2.5 mm, 5.0 mm.
Find it on our Wax shelf, under Sprue Wax.
Orders placed before 3 PM ET ship the same day when the item is on our shelf (otherwise within 3 business days), and ground shipping is free over $10.
Product
- Manufacturer
- Renfert
- Manufacturer #
- 6751040
- Item code
- 043-1140
Catalog path
- Marketplace
- Laboratory
- Category
- Wax
- Subcategory
- Sprue Wax
Ordering
- Status
- Ships in 3 business days
More from Sprue Wax
Stocked in the same subcategory.
Questions
What is Renfert GEO Wax Wire, 250 g Roll used for?
Renfert GEO light-blue, extra-hard wax wire in 3.0 mm diameter for sprues and pattern work in the dental lab.
Which hardness and diameter options are on this page?
This page carries 3 hardness options: Medium-hard, blue, Extra-hard, light blue, Hard, turquoise. This page carries 6 diameter options: 3.5 mm, 3.0 mm, 4.0 mm, 2.0 mm, 2.5 mm, 5.0 mm. Pick one to see its price, part number and stock.
When does it ship?
In-stock orders placed before 3 PM ET ship the same day; anything not on our shelf ships within 3 business days.Ground shipping is free over $10.
About sprue wire wax
Sprue wire wax is wax in wire, rod and stick form, sold by diameter, that is attached to the wax pattern to form the sprue.
A sprue is the channel through which metal is poured or cast into a mold. A sprue former is the wax, plastic or metal pattern that forms that channel. Sprue design controls the velocity and the supply of metal to the mold.
How sprue wire wax and pattern wire wax differ
- Sprue Wire Wax — Wax wire that forms the channel for the molten metal.
- Pattern Wire Wax — Ready-made wax shapes that are placed on the cast in place of free-hand waxing.
What to look at when choosing sprue wax
Shape: a study of cobalt-chromium partial denture frameworks compared ribbon, square, round and round-with-reservoir sprues. Round sprues with a reservoir gave the most satisfactory fit with the fewest internal and external defects.
Diameter and hardness: the wire on this shelf is listed by diameter in millimetres, and some of it by hardness.
Distortion: a wax pattern can hold internal strains from the way it was worked, and it distorts when the strain relaxes. Time and temperature both make it worse, which is why patterns are generally invested immediately after they leave the die or cast.
Sources: The Glossary of Prosthodontic Terms, 9th edition (J Prosthet Dent 2017) · Viswambaran et al. 2013, The effect of four sprue shapes on the quality of cobalt-chromium cast removable partial denture frameworks (PMC3757871) · Distortion in Wax Patterns Fabricated Using Conventional and Electrical Heat Sources, 2023 (Cureus, PMC10388666)
