Interior plaster typically uses which type of binder?

Study for the California Lathing and Plastering Contractor (C-35 License) Exam. Prepare with flashcards and multiple choice questions, each offering hints and explanations. Excel in your exam with confidence!

Multiple Choice

Interior plaster typically uses which type of binder?

Explanation:
Interior plaster relies on mineral binders that set by hydration to hold the plaster together and bond to the lath. The typical binder in traditional interior plaster is a cement-lime mix or gypsum binder. Cement-lime plaster uses cement with lime to create a hydraulic set, giving strength, durability, and good bonding while allowing some breathability. Gypsum plaster uses gypsum as the binder, providing a very smooth finish and quick set, especially in dry interior spaces. Synthetic binders like acrylic, latex, or epoxy are used in specialized surface coatings or modern veneer plasters, not as the standard base interior plaster.

Interior plaster relies on mineral binders that set by hydration to hold the plaster together and bond to the lath. The typical binder in traditional interior plaster is a cement-lime mix or gypsum binder. Cement-lime plaster uses cement with lime to create a hydraulic set, giving strength, durability, and good bonding while allowing some breathability. Gypsum plaster uses gypsum as the binder, providing a very smooth finish and quick set, especially in dry interior spaces. Synthetic binders like acrylic, latex, or epoxy are used in specialized surface coatings or modern veneer plasters, not as the standard base interior plaster.

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