Hyprez Precision Lapping and Polishing Slurries

Why diamond? Reduce lapping times from hours to minutes Reduce slurry usage and waste from gallons to pints Achieve a reflective finish in a single step, eliminate hand polishing Cleaner process, cleaner parts Process a wide variety of materials Why Engis? Engis is a micronizer – we purify, precision grade, disperse, and custom formulate our slurries.  We are unequaled in our ability to precisely characterize and control particle size distributions (PSD). Applications expertise – our engineers can provide the full process recommendation for your part/material - not only the best slurry formulation but also the polishing machine, lap plate or pad, accessories, and process settings.

Engis Diamond Slurries

Engis provides a broad range of diamond slurry formulations;

• Oil Based Slurries – Our S1313 is recognized as the workhorse slurry for a broad range of lapping applications.  It provides superior plate wetting and highly reflective finishes.

• Water Based Slurries – When part clean-up is a concern, water based slurries are widely used. Hyprez formulation S4889 is available in a wide range of abrasive sizes and offers superior results in finishing a myriad of materials.

• Emulsion Slurries – S841 is a good choice for final polishing steps. S841 maintains good particle dispersion of the diamond without settling for long periods of time. This slurry offers the benefits of oil while still being easy to clean.

• Suspensions – Our S4243 water based slurry requires no stirring to maintain abrasive particle dispersion. This high viscosity suspension is useful when using a polishing pad on double side applications where it is important to fully wet and cover the lap throughout the work cycle.

Engis Colloidal Polishing Slurries

Hyprez P2 and P5 colloidal polishing slurries are specifically designed to bring out the final finish on a wide variety of electronic components and metals.

Supporting a Clean Environment Our biodegradable, environmentally-friendly Ecolap slurries provide excellent performance on a wide variety of materials such as hard ceramics, metals and plastics.  Available in both oil based (Ecolap 1001) and water based (Ecolap 2000) formulations; can be formulated with a wide variety of diamond sizes and types.

Our standard formulations are shown in the table below. Custom formulations are available. Simply choose your formulation and specify:

• Diamond type (polycrystalline, monocrystalline)
• Diamond size (available from 50 nm to 60 micron)
• Package size (pints, quarts, gallons)

Our experts are happy to guide your choice of slurry based on your application, material, and requirements.

Aluminum Oxide Powder with Lapping Oil

• Low cost and recyclable
• Used for achieving matte finish
• Powder sizes from 5 – 50 micron

For the Ultimate in Precision

Engis manufactures stirring and dispensing control units complemented by our convenient-to-use spray nozzles.

The EMC-3 MiniMiser® is a compact, reliable dispensing system used to lightly spray fluids ranging from very thin to thick viscosity onto a lap plate or other surface.  The MiniMiser combines a compact design ("Mini") and an Atomizer ("Miser") providing strict control over both the duration of the spray and the intervals between sprays.  This results in enhanced surface coverage and significant cost savings due to less vehicle being used.
The Hyprez Autostirrer keeps diamond completely dispersed by stirring the slurry with a magnetic spin bar, ensuring even diamond concentration through the lapping cycle.
Engis spray nozzles and accessories are matched to your particular needs.  A remote nozzle stand is also available for difficult to reach locations.  These dispensing units, like all Engis manufactured products, comply with our ISO9001 Quality Management System.  This ensure you consistently receive high quality and high performance products.
Part Number Description EMC-3 MiniMiser Dual Electronic Spray Dispenser ASP115 Autostirrer 115 VAC ASP230 Autostirrer 230 VAC 509.5A 5" (12.7cm) Long Nozzle 509.10A 10" (25.4cm) Long Nozzle 509.15A 15" (38.1cm) Long Nozzle 509.24A 24" (61cm) Long Nozzle 509.10M 10" (25.4cm) Remote Nozzle with Magnetic Base