Custom Formulation

Ellsworth Adhesives partners with Resinlab and The Glue Factory to provide you with custom formulated adhesives, sealants, and potting systems to your specifications.

Resinlab – Epoxy, Polyurethane, Acrylic/Methacrylate, Cyanoacrylate systems

The Glue Factory – Hot Melt, Pressure Sensitive, Water Based and Solvent Based Adhesives

Resinlab, an Ellsworth Adhesives company, specializes in creating custom formulations to meet your exact application requirements. Our staff of Product Development Chemists can respond to projects both large and small – using their decades of experience to quickly satisfy your design, manufacturing and quality requirements. Our state-of-the-art laboratory facility enables us to provide solutions to industries including aerospace, defense, electronics and transportation. Whether you are in need of a high-tech or low-tech formulation - in a quart or a tote - we can provide it quickly and cost-effectively.

The Glue Factory, an Ellsworth Adhesives company, develops and manufactures hot melt, water based and solvent based adhesives utilizing a wide range of chemistries. Hot melt formulations are available in pellets, pillows, sticks, bricks, and pails. Water and solvent based adhesives can be supplied in packaging from gallons to totes. 


Resinlab logo 240

Resinlab offers a number of special capabilities.

Toll Blending
Resinlab is expert at contract blending (toll blending). Our wide range of manufacturing capabilities and experience allows us to blend your in-house formulations. We provide the very best in formula review, effective manufacturing, certifications, MSDS documentation, QA specifications and custom packaging. Our technical expertise with a variety of resin systems will help you avoid pitfalls associated with in-house production. You can trust Resinlab for consistent quality when choosing a supplier for the toll blending of your formulas.

Product Modification
Resinlab can modify color, viscosity, cure speed, hardness and nearly any other property to exactly meet your requirements. Our staff of Development Chemists has the expertise to get your project moving forward quickly and cost-effectively.

Lab Capabilities
Resinlab's state of the art laboratory instrumentation has the capability to support all of our customers’ needs. Used for both product development and quality control, these instruments allow us to validate design parameters and verify they stay in range with every production lot of material.

TA Instruments 2910 Differential Scanning Calorimeter
Resinlab uses Differential Scanning Calorimetry to characterize the thermal response of products. Exotherm, glass transition points, melting points are among the key properties clearly identified by DSC.

Thermocouple Data Acquisition
Thermocouple data acquisition captures the reaction profile and exotherm of a curing polymer in a defined part. This can be run at various ambient temperatures to show the effect of mass, geometry and surrounding materials on heat generation and dissipation to assure a low stress casting.

MTS QTest 25
MTS QTest 25 is a versatile physical tester used to measure a product's tensile strength, elongation, compressive and flexural properties and adhesion to various materials.

Nicolet Nexus 470 FT-IR
Our FTIR is used to identify the chemical fingerprint of polymers.

Brookfield Viscometers 
  • DV II + Thermosel Viscometer
  • DV III Ultra Thermosel Viscometer
  • RVT


Combined with our sister company, Kitpackers, Resinlab can also provide you with custom packaging for your custom formulations.

Have a question about Resinlab custom formulations? Get your answer from the Glue Doctor!

The Glue Factory

Glue Factory logo 

The Glue Factory is dedicated to working with customers on adhesive applications, large or small, requiring Hot Melt, Water Based and Solvent Based adhesives.

The Glue Factory specializes in the following areas: 
  • Bulk hot melt adhesives for packaging and corrugated type applications
  • Glue sticks and glue guns to support the bulk hot melt products that we offer
  • Pressure sensitive hot melts for all applications
  • Water-based (environmentally friendly) adhesives and cohesives
  • Custom formulations for very specific application requirements
  • Toll blending
  • Contract manufacturing
  • Application assistance