MAP for Dental Investments CermaDent 159

A micronised monoammonium phosphate powder stabilised to proven shelf life and maintenance of expansion properties in investment mixes. Milled to known parameters using SPC (Statistical process Control) techniques and measured in actual investment mixes together with MgO from the CerMag range Part of the programme of continued improvement of materials for dental investments from Cermatco Ltd. Advantages derived from this micronised powder are:

Stable phosphate with proven minimum moisture pickup under warehouse conditions and in foil sachets
Coarse particles eliminated
Lump forming eliminated
Total control of fluid properties

Particle Size Distribution using Cilas 1064L Laser

Stability Measured during storage in paper sack lined with plastic and heat-sealed under warehouse conditions. No change in expansion values.

Controls

Particle Size Data by Cilas
pH in aqueous solution
Reactivity measured against standard MgO – best performance with CerMag FC25
Expansion and Working Time against controls at customers options
Tailor-made match of both MgO and MAP in a dental investment
Additives may be co-milled to improve the reactivity of the MAP under Speed-Mix conditions

Oxide	%
P₂O₅	60
NH₃	14.5
H₂O (110 degrees)	0.2
pH	4.46

Bulk Density 1.12 g/ml (tapped)

Points to note:

Reduction in finer fractions to control hygroscopic
Reduction of coarse fractions to reduce problems with unreacted MAP and improve surface finish of the cast piece
Controls are set to within microns to ensure reproducibility
Sharp peak ensuring high exotherm and compatibility of similar sharp peaks in the particle size distribution of the CerMag 25 range of MgO

Packaging Options

25 kilo paper/plastic sacks on euro pallets
1000-1500kg lined big-bags on euro pallets

General
Info