Determining

Viscosity

The thickness of PaleoBOND products is measured by the viscosity of the adhesive in centipoise. The poise is the unit of dynamic viscosity in the centimetre gram second system of units.
A centipoise (cp) is one one-hundredth of a poise.

When determining centipoise, all other fluids are calibrated to the viscosity of distilled water at STP. Water at approximately 70 °F (21 °C) is about one centipoise.  Penetrant Stabilizer has a viscosity less than water.  Each structural adhesive has a corresponding centepoise determined by the thickness of the adhesive.  PB40 is the lowest at 40 cps and Jurassic Gel the highest at 80,000 cps.  For comparison, ethylene glycol has a viscosity of 24 cp. Honey comes in at 2000 csp and lard has a viscosity of 100,000 cps.

What's so special about PaleoBOND?

PaleoBOND was developed when Bill Mason realized that there was something missing in the fossil collecting industry.  Too many specimens were being tossed in the dump pile as they broke apart when collecting or preparing.  A problem solver, Bill came up with a solution.  Create a strong, clear adhesive that would stabilize and preserve fossils and minerals with reliability.  

PaleoBOND has been tried and tested for over 30 years by professionals and amateurs including geologists, mineralogists and paleontologists around the globe.  It is used and recommended for use on rare and expensive materials or just to preserve your special find. Why use a cheaper, lesser quality product when you can use PaleoBOND and know that your specimen will endure the test of time?   Many adhesives on the market today are not refined and will turn yellow and degrade over time.  PaleoBOND has a chemistry that will stay strong and clear indefinitely.

The quality and value of PaleoBOND is what keeps customers reordering. On an ounce per ounce comparison, PaleoBOND takes less product to preserve a specimen because it is stronger and more durable. You would have to use a considerably larger amount of another product to try to recreate the same results you achieve with PaleoBOND.

REPAIR OF BROKEN BONE/MINERAL TECHNIQUE:
When you are planning to join a bone-to-bone or mineral-to-mineral fracture, a careful examination of the break is necessary.  Small parts of the broken surface often fall sideways or misalign themselves with the opposing surface, preventing a quality matched surface rejoining.  
1.  Gently clean the two opposing surfaces with a fine quality brush to remove any loose particles away.  Make a test rejoining without using any adhesive.  If you have a poor match, dig out the object that is preventing the match and try again.  When you are satisfied, make a mark across the joining line with a felt pen or pencil.  This will help you keep the alignment after you separate the pieces to apply adhesive.
2.  Apply PaleoBOND Penetrant Stabilizer (PB002) to both opposing surfaces.  Let it soak in until the surface dulls; apply more if the bone will take it.  By doing this you are strengthening the internal micro-vascular substrate prior to adhering the pieces with a structural adhesive.
3.  Choose from one of the adhesives (PB40, PB100, PB750, PB1500 or Jurassic Gel 4540) depending on the error (gap) between the two opposing surfaces.  Apply to ONE surface. Join the opposing surface matching up the line you made previously.
4.  ALWAYS be sure to work in a well ventilated area as the fumes can be irritating.
5.  WIPE AWAY any excess squeeze out. HOLD the parts together.
6.  If you need a faster bond, SPRAY the Activator 304 or 303 sparingly on the bond line.  This will give an immediate low strength bond.  This bond will gain considerable strength as time passes and the adhesive fully cures.

FOSSIL IVORY REPAIR:
We have considerable experience from the paleontology field and the knife making circles that the Penetrant Stabilizer (PB002) works wonders.  When ivory looses its moisture, it shrinks, hence the cracking.  The PB002 seals and bonds the fine openings and cracks and stabilizes the ivory.  Don’t hesitate to call us if you have questions prior to starting your repair.

Our experience