INTRODUCTION

• Epoxy is a group of chemical compounds that consist of large molecules with repeating subunits i.e. it is a polymeric compound.
• Polymers have molecular structure which is responsible for their toughness & elasticity.
• Both natural & manmade polymers are universal in nature.
• Epoxy plays a major role in construction as a adhesive as well as coating.
• Epoxy resin contains epoxides (highly reactive groups of molecule)
• Compounds get harden either by combining it with other substance or heating it to high temperature.

ADVANTAGES OF EPOXY RESINS 

•  STRENGTH :- Due to the polymeric structure it creates a remarkable strong bond as well as it is a waterproof compound and able to withstand high temperature.
•  COMPATIBILITY :- While other common adhesives are limited in their use epoxy can work to bind a broad array.
•  SPEED :- The curing time is different for different epoxy but for some fast acting ones it can be under an hour.

DISADVANTAGES OF EPOXY RESINS 

•  COMPLICATED APPLICATIONS :- Epoxies require combining two different substance either by hand or through application system. 
•  VENTILATED SPACE :- Epoxies must be limited to their use in a well ventilated spaces because the fumes generated are hazardous & also the epoxy perform best when applied to air dried surface