This method is ideal for commercial projects that demand durable, high-performance finishes, or for planters that are very large or irregularly shaped—where lining them onsite is more practical than manufacturing GRP inserts.
Onsite Lining vs. Removable Liners
Onsite Lining
• A resin and fiberglass coat is applied directly to the inside of the planter.
• Once cured, a gel coat is added, bonding permanently to the planter walls.
• This process makes the planter watertight.
• The lining is fixed in place—removing the sides or base later would damage the fiberglass and compromise waterproofing.
Removable Liners
• A GRP liner is custom-made to fit inside the planter.
• The liner can be removed or replaced at any time.
• Offers flexibility while still protecting the planter from water damage.
