Recent Advances in Soyad® Adhesives

Don Saylor & Dr. Jim WescottHPVA MeetingScottsdale, AZMay 25, 2010

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Outline

Soyad Program Development

Emissions

Durability

Summary / Path Forward

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5+ years of growth

14 North American HWPW-VC, HWPW-CC, & EWF mills currently manufacture with Soyad® adhesives

Approximately 50% of the adhesives used to manufacture domestic HWPW & EWF stock panels are Soyad® adhesives

Currently replacing over 75 million lbs of UF adhesive in HWPW & EWF annually

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Soyad Timeline

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Soy Flour + Curing Resin

Process and Performance Additives

Soyad® Adhesive Technology

CROSSLINKED ADHESIVE

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Soyad Technical Advances

Higher Solids

Lower Viscosity

Increased Stability

Adhesion Performance Modifiers

Crosslinker Advancements

- Lower VOC’s

- New technology allows for solids >50%

•Traditional Solids for paper chem 12-20%

- Lower viscosity technology has been developed

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Why Choose Soyad?

100% NAF Adhesive

The most cost effective NAF option

Wide operating window

The Four S’s: Safe, Simple, Sticks, Stable

Very easy to clean up

Excellent durability- hot or cold water conditions

Commitment to Excellence

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Commitment to Excellence

600 Technical Service Chemical Engineers in NA available to support Soyad!

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Why Choose Soyad?

100% NAF Adhesive

The most cost effective NAF option

Wide operating window

The Four S’s: Safe, Simple, Sticks, Stable

Very easy to clean up

Excellent durability- hot or cold water conditions

Commitment to Excellence

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Why Choose Soyad?

100% NAF Adhesive

The most cost effective NAF option

Wide operating window

The Four S’s: Safe, Simple, Sticks, Stable

Very easy to clean up

Excellent durability- hot or cold water conditions

Commitment to Excellence

Extremely low emissions under ALL conditions

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Low Emissions Under ALL Conditions

CARB specifies “Large Chamber ASTM E-1333” as the primary test method

E-1333 is conducted at only 25 C and 50% RH- Most test are run at extremes… not this one!

UF chemistry suffers from hydrolysis resulting in the GENERATION and subsequent evolution of ADDITIONAL formaldehyde

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Emissions: Temp and Humidity Effects

Static method in sealed bottles

- (modified EN 717-3)

Varying levels of humidity and temperature

Varying durations

Soyad and ULEF samples tested (Both CARB II)

¾” 7-ply HWPW Construction

Study was run at and in cooperation with the Forest Products Laboratory

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Estimated CARB P2 level < 10 ULEF Continues to generate additional CH2O ULEF at 96 hrs = 33X Soyad

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Soyad panels emit very little additional formaldehyde after the first 24 hours

ULEF rate is actually increasing exponentially (scavenger is consumed?)

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Similar Trend at 25 C

Durability in EWF

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Stability Testing of EWF

5-Ply Engineered Wood Flooring Panels Oak/Gum/Gum/Gum/Oak construction

3/8” thickness

Samples were subjected to an extreme range of temperature/humidity combinations over 15 days to probe durability

Panels were cut into test pieces before beginning test protocol to maximize exposure of bond lines to environment. 3-Cycle soak samples (2” X 5”)

Shear samples (1” X 3”)

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Day # ConditionTime(hr)

Temperature(°F)

RelativeHumidity

TheoreticalMC

Pre-Test Conditioning 72 70 50% 9.2%

1 Hot/Wet 24 80 90% 20.2%

2 Cold/Moist 24 15 70% 13.5%

3 Hot/Dry 24 90 20% 4.3%

4 Cool/Wet 24 36 90% 21.0%

5 Hot/Dry 24 90 20% 4.3%

Post-Test Conditioning 72 70 50% 9.2%

3X

Temperature/Humidity Cycling Protocol

Stability Testing of EWF

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Length (in)

Height (in)

Width (in)

Control Samples 3.282 0.997 0.380

Cycled Samples 3.282 0.998 0.380

Dimensional Stability of Shear Test Samples

  Panel Testing

  3-Cycle Soak Shear Strength Testing

      Dry Std. % Wet Std. %

    % Shear Dev. Dry Shear Dev. Wet

Type Score Pass (psi) (psi) WF (psi) (psi) WF

Control 0.81 100% 448 74 83 251 68 12

Cycled 0.38 100% 511 91 63 267 70 2

Shear and 3-Cycle Soak Test Results

Bond lines 1 & 2 tested in shear tests (oak-gum-gum)

Stability Testing of EWF

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Continued Development

Desire for higher % wet wood failure

- Requirement for EN-314

- Requirement for ANSI/HPVA Type I bond

Lower cost system

Enhanced bonding to challenging veneers

- Hickory, Fumed Yellow Birch

Simpler system for small veneering and assembly

Desire for a lighter cured glue color

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Summary

Soyad has been accepted in North America as a high performance, low cost, no-formaldehyde alternative

Soyad technology is developing rapidly

Soyad emissions is a key differentiator vs. ULEF

Soyad durability in EWF is excellent

Soy-based NAF composite core is coming soon !