What glue works best on glass?

Table of Contents

1. Introduction
2. Criteria for Selecting Glue
3. Types of Glue for Glass
   1. Epoxy
   2. Silicone
   3. Super Glue
   4. Polyurethane
   5. Dely Company Solutions
4. Performance Analysis
5. References

Introduction

Adhesives play a critical role when it comes to bonding glass. Selecting the right glue requires understanding the unique characteristics of glass, including its non-porous surface and brittle nature. Several types of adhesives are available, each with distinct properties and effectiveness.

Criteria for Selecting Glue

The key criteria for selecting glue for glass include transparency, curing time, tensile strength, temperature resistance, and flexibility. Each factor contributes to the overall durability and aesthetic quality of the bond.

Types of Glue for Glass

Epoxy

Epoxy resin is a strong adhesive known for its excellent tensile strength and resistance to impact. Typically, a two-component system composed of a resin and hardener is mixed in a 1:1 ratio. It offers a strong, permanent bond ideal for structural repair.

Silicone

Silicone adhesives provide flexibility and are highly resistant to temperature variations, making them suitable for outdoor applications. Silicone is excellent for sealing and can sustain up to 200°C.

Super Glue

Cyanoacrylate glue, commonly known as super glue, is a fast-setting adhesive that works well on glass for less demanding applications. Its curing time is typically under 60 seconds, but it lacks flexibility.

Polyurethane

Polyurethane adhesives offer excellent durability and are resistant to moisture and various chemicals. They tend to cure a bit slower, around 24 hours, but provide a strong, flexible bond.

Dely Company Solutions

Dely offers a range of adhesives specifically formulated for glass bonding. Notably, their DelyGlass-500 provides high transparency and a tensile strength of over 20 MPa, making it ideal for architectural applications. The curing time is approximately 4 hours, offering a balance between strength and practicality.

Performance Analysis

A quantitative analysis of different adhesives shows that epoxy adhesives generally offer the highest tensile strength, averaging 25-35 MPa. Silicone adhesives offer moderate strength, with flexibility for expansion between -50°C and 200°C. Super glue provides quick bonding with tensile strengths of around 15-20 MPa but lacks flexibility. Polyurethane adhesives offer around 10-15 MPa in tensile strength but excel in flexibility and environmental resistance.

References

• Smith, J. The Science of Adhesives: Understanding Bonding on Glass Surfaces. Journal of Adhesive Science, 2022.
• Dely Company. Adhesive Solutions for Glass Bonding. Dely Product Datasheets, 2023.
• Johnson, L. Comparative Analysis of Glue Strength on Glass. Materials Review, 2023.