Adhesive experts - consultants in selection of adhesives, formulating, and adhesive research

ADHESIVE INDUSTRIAL OUTSOURCE                                                          ADHESIVES CONSULTANT

Adhesives Trouble Shooting:

Trouble shooting first evaluates the potential of an existing commercial adhesive to perform as required. If deficient, the next step is to alter the way it is used or to replace it by another. If replacement is concluded, then market shelf adhesives are searched for suitable candidates. Examples of search criteria are specific adhesion (substrate affinity) cure speed viscosity, peel, shear, loop tack, cure method, durability, and a host of others, including compliance with codes and standards. Routine screening tests are done according to standard methods from organizations such as ASTM, PSTC, Ford, GM, BMS, EN. EDH also performs some uncommon adhesive tests such as BS 5609 for marine self adhesive shipping labels.

An exhaustive search - test for commercial candidates is occasionally unsuccessful or more costly than custom formulating to specifications and arranging local toll manufacturing. A toll manufacturer often works under a nondisclosure agreement with the client.

Proven formulations emerge from the trouble shooting process. Past examples include adhesives for aerospace composites, sports equipment, electronics, marine, and veneer to metal gluing. Difficult, low energy surfaces such as polyolefin, PVC, or EPDM rubber were bonded to resist temperature extremes, weathering, or harsh chemical environments. Other examples include novel rad cure, room temperature adhesives, structural wood LVL adhesive, and adhesive synthetic patch material for plywood.

Source Search and Adhesives Selection:

EDH Technical Services adhesives consultants locate specialized adhesives in a comprehensive, world wide search and evaluation, insuring recommended products meet a client’s exact requirements. Examples of productivity payback are reductions in labor, cure cycle time, waste, or reject rate. Contract out-source review of adhesive procurement is offered by EDH. An impartial ranking of candidate suppliers is made, based on adhesive technical merit, standards compliance, supplier reliability, service support, and cost. Considerations of all factors in cost effective adhesive procurement are made, and a conclusive report is delivered. Recommendations are made congruent with ISO quality systems and corporate best practices procedures.

Legal Expert Witness & Litigation Support:

Communication skills are drawn from experience in explaining concepts of adhesives, statistical replication, significance, and error to lay managers and workers in manufacturing industries. Technical support has been provided for both plaintiff and defense in adhesive failure cases. Technical support has been provided to several attorneys in wood adhesive failure cases.

EDH experience examining patents and proposals can expose published literature, prior art or practice that can affect patent value. EDH and university affiliate laboratory facilities are used for adhesive identification, or physical and chemical analysis.

Structural Adhesives:

EDH finds, formulates and researches structural adhesives for several polymer application areas, for example:
marine adhesives  naval architectural adhesives
automotive assembly  waterproof construction
aerospace adhesives  composite repair adhesive
wood products bonding  vulcanized rubber to rubber & metals
electronics potting  abrasives adhesive
acoustics, marine adhesives  high temperature & friction materials adhesives
polymeric patch and fill materials  polymeric repair and grout materials

Examples of structural adhesive types source searched, assessed, or formulated by EDH are:

epoxy amine cure vinyl phenolic 1 part polyurethane electron beam cure
epoxy anhydride cure nitrile phenolic 2 part polyurethane UV cure adhesive
vinyl epoxy epoxy phenolic moisture cure urethane syntactic foam adhesive
nylon epoxy phenolic resole polybutadiene urethane thermoset adhesive film
water borne epoxy MDI isocyanate one part epoxy IPN adhesives
vinyl epoxy epoxy phenolic moisture cure urethane syntactic foam adhesive
epoxy novolac toughened epoxy blocked isocyanate polybutadiene epoxy
hybrid epoxy toughened acrylic polybutadiene acrylic EPI emulsion polymer
isocyanate cure oxazolidine cure no-mix acrylic 2-part acrylic

Pressure Sensitive:

PSA source search and R & D is provided by EDH Adhesive Experts for, automotive trim assembly, 
Self-adhesive labels and tapes, packaging adhesives, aerospace, and industrial assembly adhesives.

PSA, (self adhesive) consulting product areas offered by Adhesive Experts include:

polyolefin PSA polyurethane PSA
block copolymer SBS, SIS acrylic thermoset PSA
IPN interpenetrating network SBR rubber solvent PSA
UV cure PSA and EB cure PSA water borne PSA

Hot Melt Adhesives:

Hot melt adhesive types offered by EDH in adhesive research and consulting:

block copolymer SBS, SIS elastomers polyester hot melts
polyolefin hot melts acrylic hot melt
thermoplastic polyurethane hot melt ethylene vinyl acetate EVA hot melt
reactive hot melt, PUR APAO hot melt
polyamide alloy polymer HM

Wood Adhesives: 
  • Testing accreditation of structural wood adhesives to ASTM D 7247 heat resistance
  • Trouble shooting industrial wood adhesives used in composites, laminates, components, furniture, construction, and building materials
  • Hot press and cold press plywood, LVL, and veneer adhesives are formulated
  • New adhesive proposals assessed, independent adhesives due diligence reviews on industrial wood adhesives
  • New wood species assessment, evaluate the affect of new species in LVL, plywood, OSB,
    particleboard, or MDF, -- important examples are eucalyptus and bamboo plantation species
  • High speed and high moisture adhesives for laminated timber, glulam, LVL, plywood, and finger jointing
  • Catalyzed isocyanate multi-component PMDI adhesives are formulated by Adhesive Experts for spinning disk application in fast press oriented strand board
  • Covert adhesive cation ID marker systems are provided for OSB, plywood, MDF and particleboard products
  • Structural plywood adhesives are formulated for bamboo, eucalyptus or other tropical plantation species
  • Qualifications of new wood products are provided for ICC evaluation reports
  • Special wood adhesives for tropical woods or wood to polyolefins and metals
  • Synthetic patch compounds for wood veneers and plywood
  • OSB and particle board adhesive resin distribution and optimization, spectrophotometric measurement
  • Continuous lamination of film & sheet materials to wood e.g. PVC, polyethylene, polyester, metal foils
  • Environmentally friendly adhesives:
    - Low VOC, low toxicity, and renewable resource formulations
    - In door atmospheric emission surveys for isocyanate and formaldehyde levels
    - Recycle and regrind binder adhesives for particulate wastes

Bioadhesives, Renewable Resourse Adhesives: 
  • EDH has research experience in use of natural products, biomaterials, and renewable resources in industrial adhesives. These projects include the following topics:

  • Renewable resourse adhesives were formulated from dimerized oil fatty acids and amines. The bioadhesive polyamides were allied with thermoplastic polyurethanes (TPU). Two-part reactive polyamides were also formulated as natural adhesives.
  • Hydrolized soy protein isolate was used as a gelling co-reactant in resorcinol novolac, oxazolidine cured adhesives for high moisture wood bonding.
  • Technical services were provided for users of natural tannin and lignin as extenders in phenolic plywood adhesives.
  • EDH researched the use of Renewable Resourse Adhesives from tall oil resin acids and glycerol. The ester bioadhesives were tested as tackifiers and as polyester polyols.
  • Organolsolv lignin was dissolved in alkanolamine polyols for successful use in making natural component polyurathane and isocyanurate adhesives.

145 Tyee Drive #1193
Point Roberts, WA, USA
Phone: 604-433-5684
Fax: 604-434-1573

7190 Frederick Ave.
Burnaby, BC, Canada
V5J 3X9

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